281⟩ One monkey climbs 6 mts and fall 3 mts in alternate minutes then time taken to climb a tree 60 meters high?
it will take 38mins to reach 60meters.
at 39th min it will b back at 57meters and again at 40th min it will be back at 60meters
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332 Aptitude Questions And Answers
282⟩ In each questions below are given two statements followed by two conclusionsnumbered I and II. You have to take the given two statements to be true even if they seem to be at variance from commonly known facts. read the conclusion and then decide which of the given conclusions logically follows from the two given statements, disregarding commonly known facts.5. Statements All bags are chalks. All chalks are bottles.Conclusions I Some bottles are bags.II. All bags are bottlesIII. All bottles are bagsIV. Some chalks are not bagsA) Only I , II and IV followB) Only I , III and IV follow.C) Only II, III and IV follow.D) All FollowE) none of theseAns A6. Statements Some trees are buses, All buses are hatsConclusions I Some trees are hatsII. Some hats are treesIII. All hats are busesIV. Some buses are hatsA) None follow sB) Only I, II and IV follow.C) Only II , III and IV follow.D) All FollowE) none of these
ques 5: answer is E..as conclusion I and II follow but no other satisfies the condition
Ques 6: answer is B..conclusion I , II and IV are true if statements are assumed true...
This could be easily cleared by Venn diagram...
If : All X are Y then it follows that Some X will definitely be Y as all are Y..but we cant say the same about Y because there may or may not be some Y who are not X...but certainly Some Y are X.but we cant predict anything about remaining Y because they may be a part of X or may not be a part of X.
283⟩ Given that black->blueblue - greengreen - yellowyellow - redred - violetviolet - blackWhat is the color of blood?
red-violet
which further tends to black in dis way sequence moves on infinately
so conclusion will b violet
284⟩ In a theater the ratio of car & two wheeler is 18. Total Number of lyres are 100. Find how many are cars and how many are two wheelers?
car/2wheeler=1/8,suppose car be X & 2wheeler be Y
X/Y=1/8; Y=8X also there r 4 tyre in 1 car & 2 tyre in 1 two wheeler ;
therefore 4X + 2Y=100
Solving these 2 eq. X=5 & Y=40.
285⟩ Suppose a train passes two cars moving in the direction at 45km/hr and 50km/hr in 36 sec and 54 sec respectively. What is the length of the train?
train crossed the car with less speed in less time and the car with high speed in more time.i.e train and two cars going in the same direction.
hence 1st car
L/((S-45)*5/18)=36 i.e L=10S-450
similarly for 2nd car
L=15S-750
BY solving these two equations we get length of the train L=150mtrs
286⟩ It has 20 mixture contains mil and water in the ratio 35, replace 4 liters of mixture with 4 liters of water what is the final ratio of milk and water?
milk:water = 3:7
287⟩ Write a java code to print only unique numbers by eliminating duplicate numbers from the array? (using collection framework)?
import javax.swing.JOptionPane;
public static void main(String[] args) {
int[] array = new int[10];
for (int i=0; i array[i] = Integer.parseInt(JOptionPane.showInputDialog("Please enter"
+ "an integer:"));
}
checkDuplicate (array);
}
public static void checkDuplicate(int array []) {
for (int i = 0; i < array.length; i++) {
boolean found = false;
for (int j = 0; j < i; j++)
if (array[i] == array[j]) {
found = true;
break;
}
if (!found)
System.out.println(array[i]);
}
}
288⟩ From 700 AM to 1100 AM it rained 2.25 inches. At 1100 AM the rain increased to fall at a rate of 1.25 in. every two hours. How many inches of rain landed on the ground by 500 PM?a) 7b) 9.75c) 6d) 3.25e) 7.125
Answer is c)6
11AM - 5PM = 6 hrs
rain increased 1.25 every 2 hrs
3. 3*1.25 = 3.75
total rain = 2.25 + 3.75 = 6
289⟩ Three beauty pageant finalists-Cindy, Amy and Linda-The winner was musician. The one who was not last or first was a math major. The one who came in third had black hair. Linda had red hair. Amy had no musical abilities. Who was first?
First is Linda (answer)
she cant 3 bcoz she have red hair
mean she (Linda)
is 1 n 2.
now 1 have musician
but Amby cant first bcoz he have not such abilities.
so 1 n 2 may be
Linda or Cindy.
or 2 n 3 may be Amby or Cindy
Common is 2. so
so
cindy is second
then 1 is Linda
3 is Amby
1. Linda
2.
Cindy
3. Amby
290⟩ What should be the value of a, in the polynomials x2 - 11x + a and x2 - 14x + 2a, so that these two polynomials have common factors.A. 24B. 1C. -1D. 1/2
(x-b)*(x-c)=x2-11x+a-------(1)
b+c=11
bc=a
(x-b)*(x-d)=x2-14x+2a.........(2)
b+d=14
bd=2a
solving we get
b=8
c=3
d=6
which gives
a=24
291⟩ While traveling at uniform speed. U read a two digit no. after one hr the number is reversed order. After another hour the number read is same two digit number. What is the average speed?
50 units/hour
292⟩ A Flight takes off at 2 A.M from northeast direction and travels for 11 hours to reach the destination, which is in northwest direction. Given the latitude and longitude of source and destination. Find the local time of destination when the flight reaches there?
the ans is 4am.
the distance among their is (60+60)=120,
4*120=480...
THEN V HAV TO CONVERT HRS..480/60=8HRS
10-8=2HRS
IT STARTS 2AM SO 2+2=4AM.
293⟩ A number when divided by D leavs a remainder of 8 and when divided by 3D leavs a remainder of 21. What is the remainder left, when twice the number is divided by 3D?
Ans: 3
When the number is divided by 3D we got 21. Means the number itself is 21 and 3D >21.
when 21/D, remainder is 8.
So D = 21-8 =13.
now (21*2)/(13*3), Remainder is 3.
294⟩ A man fixed an appointment to meet Mr.X, X asked him to meet two days after the day before the after tomorrow. Today is Friday. What is the appointed day?
the answer is monday
295⟩ You hve been given 2 Candles which can burn upto 60 min each.With the help of them how will you calculate time upto 90 min.(You havent been provided with any measuring tape or anything)?
Burn one candle completely==60 mins
Burn the other candle from both the ends ==30 mins
60+30=90mins:)
296⟩ How can a cake(circular) be cut into 8 pieces by making just 3 cuts?
Make two cuts to divide the cake into 4 (cutting on the diameter of a circular cake, the cuts perpendicular to each other). Now, place the 4 sectors of the cake one over the other. Make a cut such that the cut goes throw the centre cutting each of the cake sectors into half. So now we have done 3 cuts. Each sector is cut into two so 4*2=8.
297⟩ In the reading room of a library, they are 23 reading spots. Each reading spot consists of a round table with 9 chairs placed around it. There some readers such that in each occupied reading spot there are different number of readers. If in all there are 36 readers, how many reading spots do not have even a single reader?
The key here is realizing that the tables that aren't empty each have a DIFFERENT number of readers. There's only one way to do this.
The very least number of people you could have at a table is just 1. The next highest number that's different than that is 2, so another table can have 2 people. Then another table might have 3, and so on. But if you add up 1 + 2 + 3 + and so on up to 8, you get 36 people. So if we seat 36 people at different tables such that there's a different number at each table, the number of tables we used is 8. And since the table with the most number of people has eight people, then there are enough seats at the table, so we don't have to worry about that.
That means 23 - 8 = 15 tables are empty.
298⟩ (loga)^2-(logb)^2 =?
(log a + log b)(log a- log b)
=log ab . log a/b
299⟩ With just six weights and a balance scale, you can weigh any unit number of kgs from 1 to 364. What could be the six weights?
The six weights will be 1 kg, 3kg,9kg, 27kg, 81 kg, and 243kg.
for instance to weigh 2kg= 3kg-1kg...and so on for all the weights
300⟩ Entry ticket to an exhibition ranges from 1p to 7p. You need to provide exact change at the counter. You have 7p coin. In how many parts will you divide 7p so that you will provide the exact change required and carry as less coins as possible?a) 8b) 7c) 5d) 3
d) 3
Divide the 7p into 1p, 2p, and 4p.
1p = 1p
2p = 2p
3p = 1p + 2p
4p = 4p
5p = 4p + 1p
6p = 4p + 2p
7p = 4p + 2p + 1p
