Q1. A man travelled a distance of 75 km in 5 hours partly on foot at the rate of 6 km hour and partly by scooter at 18 km hour Find the distance travelled by scooter

Q2. In what ratio three kinds of rice costing 1 45rs 1 54rs and 1 70rs must be mixed so that the mixture can be sold at 1 65rs per kg

Q3. How many kg of salt at42 paisa per kg must a man mix with 25kg of salt at 24 paisa per kg so that he may on selling the mixture at 40 paisa per kg gain 25 on the outlay

Q4. In an alloy zinc and copper are in the ratio 1 3 In the second alloy the same elements are in the ratio 2 3 If what proportion should the two alloys be mixed so as to form a new alloy in which zinc and copper are in the ratio 1 2

Q5. An alloy of copper and nickel contains 65 copper A second alloy contains copper and nickel in the ratio 17 3 In what ratio should the two alloys be mixed so that the new mixture contains 4 times as much copper as nickel