1.The length of a rectangle is increased by 60%. By what percentage would the width have to be decreased to maintain the same area? (3)
(1) 75% (2) 60% (3) 37 1/2% (4) 66 2/3% (5) None of these
2.Due to an increase of 15% in price of milk, a family reduces its consumption of milk by 15%. What is the effect in the expenditure of the family on account of milk? (2)
(1) 3% decrease (2) 2.25% decrease (3) 2.50% increase (4) 3.5% decrease (5) None of these
3.The number of boys and girls in the college are in the ratio 3:2. If 20% of die boys and 25% of the girls are adults, then the percentage of the students who are minor is: (1)
(1) 78% (2) 67.5% (3) 58% (4) 82.5% (5) None of these
4.Monthly incomes of two persons are in the ratio 5:4 and their expenditures are in the ratio 9:7. If each saves Rs. 500 per month, then what are their monthly incomes? (3)
(1) Rs.4000, Rs.3200 (2) Rs. 3500, Rs.2800 (3) Rs.5000, Rs.4000 (4) Rs. 4500, Rs. 3600
(5) None of these
5.The ratio between two numbers is 5:3 and difference between their squares is 144. Find the numbers. (1)
(1) 15,9 (2)10,6 (3) 5,3 (4) 20,12 (5) None of these
