Quantitative-aptitude Questions Set 38:
The least common multiple (LCM) of 3! and 8! is:
Solution:
Find the average value of the first 50 multiples of 7.
Solution:
How many prime factors are there in the expression:
(6^9) * (21^4)
Solution:
A man usually takes a certain time to walk a distance. Walking at 3/4 of his usual rate, he is 1.5 hours late. Find his usual time.
Solution:
If P and Q together can complete a work in 18 days, P and R together in 12 days, and Q and R together in 9 days, then Q alone can do the work in how many days?
Solution:
The numerator of a certain fraction is 8 less than the denominator. If 3 is added to the numerator and 3 is subtracted from the denominator, the fraction becomes 3/4. Find the original fraction.
Solution:
The true discount on a certain sum of money due 3 years hence is Rs.232 and the simple interest on the same sum for the same time and at the same rate is Rs.768. Find the sum and the rate percent.
Solution:
The price of a certain item is increased by 15%. If a consumer wants to keep their expenditure on the item the same as before, what percentage must they reduce their consumption of that item?
Solution:
Pipes A and B can fill a tank in 5 and 6 hours respectively. Pipe C can empty it in 12 hours. If all the three pipes are opened together, then the tank will be filled in:
Solution:
It takes 6 feet of wood to make a wooden frame. The market price of the wood is Rs. 5 per yard, and it is sold only by the yard, not by the feet. If a buyer needs to make 5 frames, how much will the wood cost? (Note: 1 yard = 3 feet)
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