1. 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?
2. In a class composed of x girls and y boys what part of the class is composed of girls
3. Which of the following statements drawn from the given statements are correct? Given: All watches sold in that shop are of high standard. Some of the HMT watches are sold in that shop.
4. A student divided a number by 2/3 when he required to multiply by 3/2. Calculate the percentage of error in his result.
5. The value of 0.1 x 0.1 x 0.1 + 0.02 x 0.02 x 0.02 is: 0.2 x 0.2 x 0.2 + 0.04 x 0.04 x 0.04
6. 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 :
7. The fourth proportional to 5, 8, 15 is:
8. (243)n/5 x 32n + 1 = ? 9n x 3n - 1
9. 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:
10. If the wheel of a bicycle makes 560 revolutions in travelling 1.1 km, what is its radius?
