DIRECT AND INVERSE VARIATION
- A car can travel 200 km on 12 litres of petrol. Find the distance that the same car can travel using 25 litres of petrol.
- A milkshake recipe suggests 270 mL of vanilla ice cream for two glasses of milkshake. How much ice cream is required for nine glasses of milshake?
- A 2.4 m long piece of cloth costs Rs. 684. Find the cost of a 10.6 m long piece of the same cloth.
- if 20 people can paint a building in 30 days, how long would 5 people take to paint the same building?
- A taxi was shared by four people and the cost per person was Rs. 250. If the same taxi was shared by three people, how much would each person pay?
- Anish covers a certain distance in 5 hours running at an average speed of 40 km/hr. At what speed should Anish drive so that he can cover the same distance in 4 hours?
- A tank is filled in 20 hours if the water flowing in is set at 18 litres per minute. ow much time would it take to fill the water tank if the water flowing in is set at 24 litres per minute?
- Shobhit paints 35 chairs in 7 days. In how many days will he paint 140 chairs.
- x varies inversely with y and x=5 whaen y=12. Find the value of y when x=15.
- the speed varies _______ with the time ravelled. (direct/inverse)