The ratio of 45% of 80% of A to 30% of 40% of B is 15: 4. If the average of A and B is 67.5, what is the value of AB?

If the present population of a village is 55,566, which was 35000 2 years ago, then find the rate of increase of population per year.

In an election only two candidates A and B contested 30% of the voters did not vote and 1600 votes were declared as invalid. The winner, A got 4800 votes more than his opponent thus he secured 51% votes of the total voters on the voter list. Percentage votes of the loser candidate, B out of the total voters on the voter list is:

In two successive year 100 and 75 students of school appeared at the final examination. Respectively 75% and 60 % of them passed. The average rate of pass is:

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?

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?

A team played 40 games in a season and won 24 of them. What percent of games played did the team win?