Aptitude

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“Frequently Asked Aptitude Questions in various Aptitude job Interviews by interviewer. Get preparation of Aptitude job interview questions”



332 Aptitude Questions And Answers

81⟩ A car has run 10000 miles using 5 treys interchangeably, To have a equal worn out by all treys how many miles each Tyre should have run?

each tire with 8000 miles

2 2

2 2 reserve tire=0miles now change the tire,

after 2000miles

2 4

4 4 reserve tire=2000miles

after 2000miles

4 4

6 6 reserve tire=4000miles now change the tire,

after 2000miles

6 6

8 6 reserve tire=6000

after 2000miles

8 8

8 8 reserve tire=8000

so ans is 8000.

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83⟩ A power unit is there by the bank of the river of 750 meters width. A cable is made from power unit to power a plant opposite to that of the river and 1500mts away from the power unit. The cost of the cable below water is Rs. 15/- per meter and cost of cable on the bank is Rs.12/- per meter. Find the total of laying the cab?

width of river = 750 meters

plant from the power unit = 1500 meters

hence, the cable on the bank is 1500 - 750 = 750 meters.

so, total cost = (750*15) + (750*12) = Rs. 20250/-

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84⟩ One of Mr. Horton,his wife,their son,and Mr. Hortons mother is a doctor and another is a lawyer.a)If the doctor is younger than the lawyer, then the doctor and the lawyer are not blood relatives.b)If the doctor is a woman, then the doctor and the lawyer are blood relatives.c)If the lawyer is a man, then the doctor is a man.Whose occupation you know?

Atleast one of them is doctor.

Statement a rules out son as he is a blood relative to all of them.

Statement b and c together rule out the possibility of the doctor being a woman

The only person whose occupation can be doctor, is Mr. Horton (which is not ruled out by any of the statements).

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93⟩ A sporting goods store ordered an equal number of white and yellow balls.The tennis ball company delivered 45 extra white balls,making the ratio of white balls to yellow balls 1/5 1/6how many white balls did the store originally order for?a)450 b)270 c)225 d)none of these

According to me the Answer is 270....

x-white balls y=-yellow balls

x=y

x+45/5 = y/6

solve above 2 eqs

x=-270 balls cannot be negative....

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95⟩ The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member?

let the members be a1,b,c,d,e,f,g,h,i,j .Let a2 be the younger member who replaces a1.

we have,

a1+b+c+......+j=a2+b+4+c+4+d+4+.....+j+4

=> a1+b+c+....+j=a2+b+c+..+j+36

hence,the oldest member is 36 years older than the new member

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96⟩ A file is transferred from one location to another in buckets. The size of the bucket is 10 kilobytes. The bucket gets filled at the rate of 0.0001 kilobytes per millisecond. The transmission time from sender to receiver is 10 milliseconds per bucket. After the receipt of the bucket the receiver sends an acknowledgement that reaches sender in 100 milliseconds. Assuming no error during transmission, write a formula to calculate the time taken in seconds to successfully complete the transfer of a file of size N kilobytes.(a) 10.11 N(b) 11.011 N(c) 11.01 N(d) 10.011 N(e)10.101 N

To fill the bucket 100 sec,

To transfer 1 bucket, 100.110 sec,

To transfer n bucket, 100.11n,

To transfer n kb,10.011n sec

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99⟩ The temperature at Chennai is given by the function -t2/6+4t+12 where t is the elapsed time since midnight. What is the percentage rise (or fall) in temperature between 4.00 PM and 9.00 PM?(a) 23.5%(b) 33%(c) -32.5(d) 20%(e) 46%

4pm is 16 hours from midnight..9pm is 21 hours from midnight

for 4pm...we get..-16*2/6+4*16+12 = 89

for 9pm...we get..-21*2/6+4*21+12 = 71 (approx)

% change = 18/89 *100 = 20% (Approx)

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