A man has eaten 100 grapes in 5 days. He eats 6 more grapes every day in comparison to the previous day. How many grapes did he eat on the first day?

Direction : What should come in place of the question (?) in the following question.

12 × 3.5 – 8.5 × 3.2 =?

There are 11 members in a family out of which there are 4 males and remaining females. The family has hired three cars for a trip to zoo. The members are to be seated in the cars in such a way that there are not more than four members in one car and there is at least one male in each car. How many different ways can the members travel?

The sum of four numbers is 64. If we add 3 to the first number, 3 is subtracted from the second number, the third is multiplied by 3 and the fourth is divided by 3, then all the results are equal. What is the difference between the largest and the smallest of the original number?

If ' n ' be any natural number , then by which number ( n⁴-n ) is always divisible ? 

The sum of four consecutive even number is 748.The smallest among them is-

The least number that must be subtracted from 1294 so that the remaining number when divided by 9, 11, 13 will leave in each case the same remainder 6 is:

0.8% of a number is 31, then find the number.