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. The fourth proportional to 5, 8, 15 is:
3. All men are vertebrates. Some mammals are vertebrates. Which of the following conclusions drawn from the above statement is correct.
4. A man bought a horse and a cart. If he sold the horse at 10 % loss and the cart at 20 % gain, he would not lose anything; but if he sold the horse at 5% loss and the cart at 5% gain, he would lose Rs. 10 in the bargain. The amount paid by him was Rs._______ for the horse and Rs.________ for the cart.
5. 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:
6. 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:
7. 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?
8. What was the day of the week on 28th May, 2006?
9. If the wheel of a bicycle makes 560 revolutions in travelling 1.1 km, what is its radius?
10. A sum of Rs. 12,500 amounts to Rs. 15,500 in 4 years at the rate of simple interest. What is the rate of interest?
