Aptitude Questions And Answers

201⟩ What is the value of the following series1/7 + 2/72 + 1/73 +2/74 + 1/75 + ______

Following the pattern, the 1's and 2's repeat, and the other numbers increase...

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2/74 + 1/75 + 2/76 + 1/77 + 2/78 + 1/79, etc.

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202⟩ In a pasture, the grass grows at an even rate. 40 cows can completely eat the grass in 40 days, if there are 30 cows the grass last fot 60 days, for how long it is sufficient for 20 cows1) 80 2) 90 3) 100 4) 120 5) none

40 cow can complately eat the grass in 40 days it means there is 40 * 40 = 1600 cow are able to eat the food

for 20 cow = 1600/20 = 80 Days Ans

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203⟩ There are two numbers in the ratio 89. if the smaller of the two numbers is increased by 12 and the larger number is reduced by 19 thee the ratio of the two numbers is 59.Find the larger number?

Let Smallest number be x & largest number be y.

so X/y=8/9

x=8/9y

(x+12)/(y-19)=5/9

(8/9y+12)/(y-19)=5/9

8/9y^2-19*8/9y+12y-12*19-5/9=0

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204⟩ What is the o/p of the following C-program?Main(){Char *str[] = { "Frogs"," do", "not", "die", "they", "croak!");Printf("%d %d",sizeof(str),sizeof(str[0]));}

24,4(in unix)

sizeof(str[0])= storage address=inteter=4bytes;

same as sizeof(str)= storage address of 6 =6*4bytes;

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205⟩ What is the maximum no. of arguments that can be given in a command line in C?

for a program

int main(int argc, char **argv) ....

^^^^

sizeof(int) number of arguments are possible

hence 32767 args are possible for a 32 bit computer

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206⟩ Sometime after 10.00pm a murder took place. A witness claimed that the clock must have stopped at the time of the shooting. It was later found the position of both the hands were the same but their positions had interchanged. Tell the time of the shootinga)11.54b)11.54c)12.35d)10.50

10:59pm, 11:54pm

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207⟩ If A= 0 0 0 0 1 1 1 1B= 0 0 1 1 0 0 1 1C= 0 1 0 1 0 1 0 1Then find the value of [A U C] U B and express it in decimal?

answer is 127

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208⟩ There are two candles of equal lengths and of different thickness. The thicker one lasts of six hours. The thinner 2 hours less than the thicker one. Ramesh lights the two candles at the same time. When he went to bed he saw the thicker one is twice the length of the thinner one. How long ago did Ramesh light the two candles?

3hrs

1-h/6 = (1-h/4)2

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209⟩ One fast typist type some matter in 2hr and another slow typist type the same matter in 3hr. If both do combine in how much time they will finish?

Faster one can do 1/2 of work in one hourslower one can do 1/3 of work in one hourboth they do (1/2+1/3=5/6) th work in one hour.so work will b finished in 6/5=1.2 hour i e 1 hour 12 min.

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210⟩ The size of a program is N.And the memory occupied by the program is given by M=square root of 100N.If the size of the program is increased by 1% then how much memory now occupied?

given.. M=10N^(1/2)................................eqn (1)

dM/dN=10.1/2.N^(-1/2)

or, dM=1/2(10.N^1/2)dN/N

dM=1/2(M)dN/N........................frm eqn (1)

dM/M=1/2.dN/N

put dN/N=1%.........................................frm d qs.

s, dM/M=.5%.......................Answer

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211⟩ A telephone cable is to be run from a junction point on the bank of a river 900 meters wide to an office that is located 3000 meters downstream on the opposite bank. If the cost of laying cable under water is Rs. 5 per meter and that of laying overhead on land is Rs. 4 per meter, find the point downstream where the cable is to cut across the river.(a) 450(b) 1800(c) 2800(d) 2100(e) 2700

1800. i think by laying this the total cost will be much less

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212⟩ What is the number of zeros at the end of the product of the numbers from 1 to 100?

zeros are obtained when the product of numbers involves the number '5' or multiples of number '5'.

for example,the product of 1*2*3*4*5=120 i.e there is only one zero bcoz there is only one '5' and no other multiple of '5' is involved in multiplication.

similarly 1*2*3*4*5*6*7*8*9*10=3628800 i.e there are 2 zeros in the end product bcoz there is a '5' and a '10' which is a multiple of '5' are involved.

however in 25*24=600 you see 2 zeros in the end product bcoz 25 can be written as 5*5.

therefore the number of zeros in the end product of numbers 1 to 100 is 23

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213⟩ Jalia is twice older than qurban. If jalia was 4 years younger, Qurban was 3 years older their difference between their ages is 12 years. What is the sum of their ages?a) 67b) 57c) 36d) none

very simple logic is take julia as 2x

qurban as x

then]

(2x-4)-(x+3)=12

so x=19

so the present sum of ages is 38+19=57

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214⟩ A man ate 100 bananas in five days, each day eating 6 more than the previous day. How many bananas did he eat on the first day?

x= banana on first day

for five corresponding days

x+x+6+x+12+x+18+x+24=100

5x+60=100

5x=40

x=8

first day=8

second day=x+6=8+6=14

third day=20

fourth day=26

fifth day=32

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215⟩ What is the o/p of the following C-program?Main(){Char str[7]="strings";Printf("%s",str);}

This problem doesnt cause any kind of error!!! this is really tricky.. the size of the string "strings" is 7 but it terminates with a char. thus causing the total size to 8.

here in this case some abserd value will come as an output..

if the size of the array is less than 7 then it ll give the error " too many initilization"

and if the size is more than7 then the output ll be perfect and "strings"

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216⟩ Three independent mechanisms A,B and C have been incorporated for fuel saving in a car producing respectively 30%, 20%, and 40% efficiency. Assuming that they operate independently, what is the net fuel efficiency achieved?

In all of the three mechanisms out of 100%

first looses 70% efficiency,

second looses 80% of 30%

efficiency of the first and third loses 60% of 80% of 30%

Then the lack of efficiency is 60% of 80% of 30% = 14.4

total efficiency is (100 - 14.4) = 85.6 (ans)

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217⟩ What is the last digit of 7291?

explanation:

7291 : 7+2= 9 so 9+1 =10

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218⟩ 600 to be seated. 10 benches are less. 2 more persons are required to be seated in each bench. How many benches.209364460

ans is 60 benches

let x=no of benches

y=no of students per bench

given

x*y=600,---------(1)

and given that 10 benches are less hence 2 students are seated more than per bench then

600=(x-10)*(y+2)

600=xy+2x-10y-20------------(2)

since xy=600

then eq(2) is

2x-10y=20

2x-10(600/x)=20

on solving

we get x=60

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219⟩ If the circumference of a circle is 100 units, Then what will the length of the arc described by an angle of 20 degree?

WE KNOW THAT CIRCUMFERENCE = 2 * 3.142 * RADIUS

AND THEN RADIUS = (CIRCUMFERENCE )/2*3.142

RADIUS = 100/2*3.142

RADIUS = 50/3.142

SO , ANGLE = 20 DEGREES

ANGLE = LENGTH/RADIUS

(20 * 3.142)/180 = (LENGTH*3.142)/ 50 CHANGE DEGREE TO RADIANS

THEREFORE LENGTH = 100/18 = 5.5

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220⟩ Find the next number in the series 3, 4, 6, 9, 13,?

18....

procedure...

3,4,6,9,13,......

steps: diffrence between 1st and 2nd no = 1

diffrence between 1st and 2nd no = 2

diffrence between 1st and 2nd no = 3 and so on....

diffrence between 5th no and 4th no = 5

ie; X - 13 = 5

X = 18

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Aptitude

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332 Aptitude Questions And Answers

201⟩ What is the value of the following series1/7 + 2/72 + 1/73 +2/74 + 1/75 + ______

202⟩ In a pasture, the grass grows at an even rate. 40 cows can completely eat the grass in 40 days, if there are 30 cows the grass last fot 60 days, for how long it is sufficient for 20 cows1) 80 2) 90 3) 100 4) 120 5) none

203⟩ There are two numbers in the ratio 89. if the smaller of the two numbers is increased by 12 and the larger number is reduced by 19 thee the ratio of the two numbers is 59.Find the larger number?

204⟩ What is the o/p of the following C-program?Main(){Char *str[] = { "Frogs"," do", "not", "die", "they", "croak!");Printf("%d %d",sizeof(str),sizeof(str[0]));}

205⟩ What is the maximum no. of arguments that can be given in a command line in C?

206⟩ Sometime after 10.00pm a murder took place. A witness claimed that the clock must have stopped at the time of the shooting. It was later found the position of both the hands were the same but their positions had interchanged. Tell the time of the shootinga)11.54b)11.54c)12.35d)10.50

207⟩ If A= 0 0 0 0 1 1 1 1B= 0 0 1 1 0 0 1 1C= 0 1 0 1 0 1 0 1Then find the value of [A U C] U B and express it in decimal?

209⟩ One fast typist type some matter in 2hr and another slow typist type the same matter in 3hr. If both do combine in how much time they will finish?

210⟩ The size of a program is N.And the memory occupied by the program is given by M=square root of 100N.If the size of the program is increased by 1% then how much memory now occupied?

212⟩ What is the number of zeros at the end of the product of the numbers from 1 to 100?

213⟩ Jalia is twice older than qurban. If jalia was 4 years younger, Qurban was 3 years older their difference between their ages is 12 years. What is the sum of their ages?a) 67b) 57c) 36d) none

214⟩ A man ate 100 bananas in five days, each day eating 6 more than the previous day. How many bananas did he eat on the first day?

215⟩ What is the o/p of the following C-program?Main(){Char str[7]="strings";Printf("%s",str);}

216⟩ Three independent mechanisms A,B and C have been incorporated for fuel saving in a car producing respectively 30%, 20%, and 40% efficiency. Assuming that they operate independently, what is the net fuel efficiency achieved?

217⟩ What is the last digit of 7291?

218⟩ 600 to be seated. 10 benches are less. 2 more persons are required to be seated in each bench. How many benches.209364460

219⟩ If the circumference of a circle is 100 units, Then what will the length of the arc described by an angle of 20 degree?

220⟩ Find the next number in the series 3, 4, 6, 9, 13,?

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Aptitude

Home Basic Common Aptitude

332 Aptitude Questions And Answers

201⟩ What is the value of the following series1/7 + 2/72 + 1/73 +2/74 + 1/75 + ______

202⟩ In a pasture, the grass grows at an even rate. 40 cows can completely eat the grass in 40 days, if there are 30 cows the grass last fot 60 days, for how long it is sufficient for 20 cows1) 80 2) 90 3) 100 4) 120 5) none

203⟩ There are two numbers in the ratio 89. if the smaller of the two numbers is increased by 12 and the larger number is reduced by 19 thee the ratio of the two numbers is 59.Find the larger number?

204⟩ What is the o/p of the following C-program?Main(){Char *str[] = { "Frogs"," do", "not", "die", "they", "croak!");Printf("%d %d",sizeof(str),sizeof(str[0]));}

205⟩ What is the maximum no. of arguments that can be given in a command line in C?

206⟩ Sometime after 10.00pm a murder took place. A witness claimed that the clock must have stopped at the time of the shooting. It was later found the position of both the hands were the same but their positions had interchanged. Tell the time of the shootinga)11.54b)11.54c)12.35d)10.50

207⟩ If A= 0 0 0 0 1 1 1 1B= 0 0 1 1 0 0 1 1C= 0 1 0 1 0 1 0 1Then find the value of [A U C] U B and express it in decimal?

209⟩ One fast typist type some matter in 2hr and another slow typist type the same matter in 3hr. If both do combine in how much time they will finish?

210⟩ The size of a program is N.And the memory occupied by the program is given by M=square root of 100N.If the size of the program is increased by 1% then how much memory now occupied?

212⟩ What is the number of zeros at the end of the product of the numbers from 1 to 100?

213⟩ Jalia is twice older than qurban. If jalia was 4 years younger, Qurban was 3 years older their difference between their ages is 12 years. What is the sum of their ages?a) 67b) 57c) 36d) none

214⟩ A man ate 100 bananas in five days, each day eating 6 more than the previous day. How many bananas did he eat on the first day?

215⟩ What is the o/p of the following C-program?Main(){Char str[7]="strings";Printf("%s",str);}

216⟩ Three independent mechanisms A,B and C have been incorporated for fuel saving in a car producing respectively 30%, 20%, and 40% efficiency. Assuming that they operate independently, what is the net fuel efficiency achieved?

217⟩ What is the last digit of 7291?

218⟩ 600 to be seated. 10 benches are less. 2 more persons are required to be seated in each bench. How many benches.209364460

219⟩ If the circumference of a circle is 100 units, Then what will the length of the arc described by an angle of 20 degree?

220⟩ Find the next number in the series 3, 4, 6, 9, 13,?

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