1. A mixture of milk and water contains 7% water. What quantity of pure milk should be added to 12 litres of mixture to reduce water to 4%? (5)
- (1) 5 litres
- (2) 6 litres
- (3) 7 litres
- (4) 8 litres
- (5) None of these
2. Present ages of P and Q are in the ratio 4 : 5 respectively. Six years hence the ratio becomes 7 : 8. What is the sum of the present ages of P and Q? (1)
- (1) 18 years
- (2) 30 years
- (3) 36 years
- (4) Can’t be determined
- (5) None of these
3. A started a business investing Rs 10,000. B joined him after six months with an amount of Rs 8,000 and C joined them with Rs 12,000 after another six months. The amount of profit earned should be distributed in what ratio among A, B and C respectively, four years after A started the business? (3)
- (1) 9 : 7 : 10
- (2) 10 : 9 : 7
- (3) 10 : 7 : 9
- (4) Can’t be determined
- (5) None of these
4. A man bought some fruits at the rate of 4 for Rs 5 and sold them at the rate of 7 for Rs 8. What is the profit/loss per cent? (2)
- (1) 8 (4/7)% profit
- (2) 8 (4/7)% loss
- (3) 9 (3/8)% profit
- (4) 9 (3/8)% loss
- (5) None of these
5. A, B and C can do a piece of work in 20, 30 and 100 days respectively. If A worked alone on the first day, B worked alone on the second day, C worked alone on the third day, A worked alone on the fourth day, and so on, then in how many days the work got completed? (3)
- (1) 29 days
- (2) 28 days
- (3) 31 (1/2) days
- (4) Can’t be determined
- (5) None of these