The average mathematics marks of two section A and B of class IX in the annual examination is 74. The average marks of Section A is 77.5 and that of Section B is 70. The ratio of number of student of section A and B is:

In a school 40% of the students play football and 50% play cricket. If 18% of the students neither play football nor cricket, the percentage of the students playing both is:

The income of A is 25% more than that of B and the income of C is 65% less than the sum of the incomes of A and B. Income of C is what percent less than the income of A?

If the height of a cylinder is increased by 15% and the radius of its base is decreased by 10%, then by what percent will its curved surface area change?

It was compulsory to get 36% marks in a paper to Rakesh to pass it. He got only 24 % marks and failed by 9 marks. Total marks of paper was-

A student scored 32 percent and failed by 6 marks. If he had scored 36 percent marks, he would have passed by 2 marks. What is the passing mark?

If 8% of x is the t same as 4 % of y, then 20% of x is the same as:

A man had a certain amount with him. He spent 20% of that to buy an article and 5% of the remaining on transport. Then he gifted ₹ 120. If he is left with ₹ 1,400, the amount he spent on transport is: