Question

ect & Inverse Proportions 1. 2. 3. 4. 5 . 6. 7. A car covers 432 km in 36 litres of petrol. How much distance would it cover in 25 litres of petrol? If 50 metres of a cloth costs Rs 3725, how much cloth can be purchased for Rs 1788? If the weight of 9sheets of thickpaper is 30 grams, how many sheets of the same paper would weigh 1 kilograms? A train is moving at a uniform speed of 75 km/hr. (a) How far will it travel in 24 minutes. (b) In how much time will it cover 175 kms? A vertical pole 5m 60cm high casts a shadow 3m 20cm long. Find at the same time (i) the length of shadow cast by another pole 10 m 50cm high, (ii) the height of a pole which casts a shadow 5m long. The scale of a map 1.3 x 107. Two cities are 5 cm apart on the map. Find the actual distance between them in kilometers. If 5 men or 7 women can earn Rs 875 per day, how much would 10 men and 5 women earn per day? A truck covers a distance of 510 km in 34 litres of diesel. How much distance would it cover in 20 litres of diesel? If 45 men can do a piece of work in 49 days. In how many days will 35 men do it? If 14 workers can build a wall in 45 hours, how many workers will be required to do the same work in 35 hours? 6 pipes can fill a tank in 1 hour 24 minutes. How long will it take to fill the tank if 7 pipes of the same type are used? In a fort, 300 men had provisions for 90 days. After 20 days, 50 men left the fort. How long would the food last at the same ratio? If 35 men can reap a field in 8 days, in how many days can 20 men reap the same field? 12 men can dig a pond in 8 days. How many men can dig it in 6 days. A garrison of 900 men had provisions for 42 days. However, a reinforcement of 500 men arrived. For how many days will the food last now? 8. 9. 10. 11. 12. 13. 14. 15.​

Answer 1

Answer: A car covers 432 km in 36 litres of petrol. How much distance would it cover in 25 litres of petrol?

Distance covered in 36 litres= 432 km

Distance covered in 1 litre= 432/36=12 km

Distance covered in 25 litre=12x25=300 km