MCA Entrance Previous Year Question Bank

In a city, 40% of the adults are illiterate while 85% of the children are literate. If the ratio of the adults to that of the children is 2 : 3, then what percent of the population is literate?

In an examination, 78% of the total students who appeared were successful. If the total number of failures was 176 and34% got first class, then how many students got first class?

In a city, 40.1% of the adults are illiterate while 85.1% of the children are literate. If the ratio of the adults to that of thechildren is 2 ∶ 3, then what percent of the population is literate?

In the half – yearly exam only 60% of the students were passed. Out of these (passed in half- yearly) only 70% students are passed in annual exam, out of remaining students (who fail in half- yearly exam) 80% passed in annual exam. What percent of the students passed the annual exam?

A university is offering elective courses in Mathematics, Economics and Sociology. Each of its 100 undergraduate students has to opt for at least one of these electives. Course enrollment data showed that 47 students enrolled for Mathematics, 47 students enrolled for Economics and 57 students enrolled for Sociology. If 7 students enrolled for all three courses, how many students enrolled for exactly one course?

Ritu purchased 20 dozen of Banana at the rate of Rs. 375 per dozen. She sold each one of them at the rate of Rs. 33. What was the percentage profit.

A 30 litres mixture of milk and water 10% water. How much milk should be added so that the percentage of water in the mixture in the mixture comes down to 2%?

The percentage change in area of a rectangle by decreasing its length and increasing its breadth by 5% is

If a number is increased by 30% and then decreased by 20%, what is the net change?

A number which, when increased by 15% becomes 161. What is the original number?