1. A student divided a number by 2/3 when he required to multiply by 3/2. Calculate the percentage of error in his result.
2. All men are vertebrates. Some mammals are vertebrates. Which of the following conclusions drawn from the above statement is correct.
3. Sum of three even consecutive numbers is 48, which is the least number
4. 1. Sum of three even consecutive numbers is 48, which is the least number
5. In a class composed of x girls and y boys what part of the class is composed of girls
6. A tennis marker is trying to put together a team of four players for a tennis tournament out of seven available. males - a, b and c; females – m, n, o and p. All players are of equal ability and there must be at least two males in the 1 team. For a team of four, all players must be able to play with each other under the following restrictions: b should not play with m, c should not play with p, and a should not play with o. Which of the following statements must be false?
7. Find out the wrong number in the series. 1, 3, 10, 21, 64, 129, 356, 777
8. (243)n/5 x 32n + 1 = ? 9n x 3n - 1
9. A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is :
10. The fourth proportional to 5, 8, 15 is:
