A certain number of students from school X appeared in an examination and 30% students failed. 150% more students than those from school X, appeared in the same examination from school Y. If 80% of the total number of students who appeared from X and Y passed, then what is the percentage of students who failed from Y?

If the duty on an article is reduced by 40% of its present rate by how much per cent must its consumption increase in order that the revenue remains unaltered?

The Government reduced the price of sugar by 10 per cent. By this a consumer can buy 6.2 kg more sugar for ₹ 837. The reduced price per kg of sugar is:

The price of sugar is reduced by 20%. Now a person can buy 500g more sugar for ₹ 36. The original price of the sugar per kilogram was: 

In an examination, 45% of all the students who appeared are boys and the rest are girls. If 60% of the boys and 70% of the girls passed, then what is the percentage of students who failed?

One-third of 1206 is what percentage of 134?

If the radius of the base of a right circular cylinder is increased by 20% and the height is decreased by 30%, then what is the percentage increase/decrease in the volume?

Direction: Study the following information carefully and answer the questions given below.
 25% of the boys and 60% of the girls from a college participated in an event. The total number of girls in the college is equal to the number of boys, who do not participate in the event.

If the difference the number of boys and girls, who participated in the event is 40, then the total number of boys and girls in the college is