1. In a mixture 60 litres, the ratio of milk and water 2 : 1. If the this ratio is to be 1 : 2, then the quanity of water to be further added is:
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. It was calculated that 75 men could complete a piece of work in 20 days. When work was scheduled to commence, it was found necessary to send 25 men to another project. How much longer will it take to complete the work?
5. (243)n/5 x 32n + 1 = ? 9n x 3n - 1
6. If a light flashes every 6 seconds, how many times will it flash in ¾ of an hour?
7. If the wheel of a bicycle makes 560 revolutions in travelling 1.1 km, what is its radius?
8. 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?
9. The fourth proportional to 5, 8, 15 is:
10. A metallic sheet is of rectangular shape with dimensions 48 m x 36 m. From each of its corners, a square is cut off so as to make an open box. If the length of the square is 8 m, the volume of the box (in m3) is:
