Aptitude test

Questions in aptitude test

Average of values of A, B, C (which is in GP) is 62, and average of D, E, F (which is in AP) is 66. Then what is the value of E.

Ratio of speeds for A and B is 7:8. Speed of B is 200 kmph. What is the speed of A?

A, B, C, D have average age of 20. And A and B will have a kid after 2 years, C and D will have twins after 4 years. What will be the average age of the family 5 years after the twins were born?

8 people in 8 bogies, and each bogie have 8 cows and each cow has eight calves. Cow/calve have four legs and a person have two legs. How many legs are there in a train with 8 bogies?

Of 7000 liters of milk, a part of the milk sold at 6% profit, and the remaining at 15% profit. The profit over the whole of the milk is 10%. How many liters of the milk sold at 15% profit?