1. If the length and breadth of a rectangle is increased by 10% and 20% respectively. Find the overall change in its area. (2)
- (1) 28%
- (2) 32%
- (3) 36%
- (4) 40%
- (5) 25%
2. If the radius of a semicircle is increased by 20%,what will be increment in its area? (3)
- (1) 20%
- (2) 40%
- (3) 44%
- (4) 50%
- (5) 45%
3. If the price of a commodity is increased by 18% then by how much percent one should decrease his consumption in order to keep expenditure same as previous? (1)
- (1) 900/59%
- (2) 800/59%
- (3) 700/59%
- (4) 600/49%
- (5) 100/9%
4. Find the ratio of ages of A and B after 15 yrs. If the ratio between the present ages of A to B is 2 : 3 and after 5 years is 3 : 4. (1)
- (1) 5 : 6
- (2) 6 : 5
- (3) 3 : 4
- (4) 4 : 3
- (5) 2 : 1
5. In what ratio, the shopkeeper should mix water in pure milk so that he can get a profit of 16.66% after selling this mixture of water and milk? (4)
- (1) 1 : 7
- (2) 1 : 8
- (3) 1 : 9
- (4) 1 : 6
- (5) 1 : 5