Quantitative Aptitude

Question 1

Find the number of trailing zeroes in 155!

• 30

• 38

• 42

• 44

Question 2

Find the maximum value of n such that 671! is perfectly divisible by 45n.

• 163

• 164

• 165

• 166

Question 3

The LCM of two numbers is 15 times of HCF. The sum of HCF and LCM is 480. If both number are smaller than LCM. Find both the numbers.

• 60 and 90

• 90 and 120

• 120 and 150

• 90 and 150

Question 4

Find the least perfect square number which when divided by 4, 6, 7, 9 gives remainder zero.

• 42

• 40

• 36

• 32

Question 5

A, B and C can do a piece of work in 10, 12 and 15 days respectively.They all start the work together but A leaves after the 2 days of work and B leaves 3 days before the work is completed.Find the number of days the work completed.

• 4 days

• 7 days

• 6 days

• 9 days

Question 6

In a factory same number of women and children are present. Women works for 6 hours in a day and children work 4 hours in a day.In festival season workload increases by 60% and government does not allow children to work more than 6 hours per day.If their efficiency are equal and remain work is done by women then how many extra hours/day increased by women?

• 2 hours/day
• 3 hours/day
• 4 hours/day
• 5 hours/day

Question 7

A alone would take 64 hours more to complete a work then A + B work together. B take 4 hours more to complete a work alone than A and B work together.Find in how much time A alone complete the work.

• 16 hours

• 80 hours

• 72 hours

• 48 hours

Question 8

A leak can empty a completely filled tank in 10 hours. If a tap is opened in completely filled tank which admits 4 liters of water per minute, then leak takes 15 hours to empty the tank. How many litres of water does the tank hold?

• 2400 litres

• 4800 litres

• 7200 litres

• 9600 litres

Question 9

Two pipes A and B independently can fill a tank in 20 hours and 25 hours. Both are opened together for 5 hours after which the second pipe is turned off. What is the time taken by first pipe alone to fill the remaining portion of the tank?

• 11 hours

• 13 hours

• 15 hours

• 17 hours

Question 10

If an employee walks at speed of 10 km at 3 km/hr, he will be late by 20 minutes. If he walks at 4 km/hr, how early from the fixed time he will reach ?

• 18 minutes

• 24 minutes

• 30 minutes

• 36 minutes