Class 9 (Math assignment)

 

Unitary Method Questions

1. If 5 pens cost ₹150, find the cost of 8 pens.
2. A car travels 240 km in 4 hours. How much distance will it cover in 7 hours at the same speed?
3. If 12 workers can complete a wall in 8 days, how many days will 6 workers take to complete the same wall?
4. 15 kg of rice costs ₹900. Find the cost of 1 kg and 25 kg of rice.
5. A factory produces 480 bottles in 6 hours. How many bottles will it produce in 9 hours at the same rate?
6. If 8 machines can fill 400 bottles in 5 minutes, how many bottles can 12 machines fill in the same time?
7. A train covers 180 km in 3 hours. How long will it take to cover 300 km at the same speed?
8. If the cost of 7 m of cloth is ₹560, find the cost of 15 m of the same cloth.
9. A tap fills 2/5 of a tank in 6 minutes. How long will it take to fill the whole tank?
10. 5 men can build a wall in 10 days. How many men are needed to build it in 4 days (working at the same rate)?