Unitary Method Worksheet

Quantitative aptitude lesson 7: Unitary method · Set 105 · 40 questions

The method (Go through one): Find the value of one: divide. Multiply by the number you need. Inverse (more workers → fewer days): multiply first to find the total work, then divide.

1. 1.10 painters can paint a school in 14 days. How many days would 7 painters take, working at the same speed?
2. 2.4 painters can paint a school in 14 days. How many days would 7 painters take, working at the same speed?
3. 3.5 painters can paint a school in 14 days. How many days would 10 painters take, working at the same speed?
4. 4.If 10 bottles of juice cost ₹400, how much do 8 bottles of juice cost (in ₹)?
5. 5.If 6 kites cost ₹228, how much do 15 kites cost (in ₹)?
6. 6.If 10 pens cost ₹420, how much do 9 pens cost (in ₹)?
7. 7.If 7 pens cost ₹287, how much do 8 pens cost (in ₹)?
8. 8.If 3 kites cost ₹171, how much do 16 kites cost (in ₹)?
9. 9.A car goes 30 km on 2 litres of petrol. How far can it go on 14 litres (in km)?
10. 10.7 painters can paint a school in 8 days. How many days would 8 painters take, working at the same speed?
11. 11.A hostel has enough food for 3 students for 5 days. How many days will the same food last for 5 students?
12. 12.If 5 kg of rice costs ₹190, how many kg can you buy for ₹114?
13. 13.If 10 erasers cost ₹490, how much do 7 erasers cost (in ₹)?
14. 14.2 painters can paint a school in 17 days. How many days would 17 painters take, working at the same speed?
15. 15.If 6 kg of rice costs ₹534, how many kg can you buy for ₹1068?
16. 16.A hostel has enough food for 9 students for 5 days. How many days will the same food last for 5 students?
17. 17.A car goes 230 km on 10 litres of petrol. How far can it go on 12 litres (in km)?
18. 18.If 4 kg of rice costs ₹180, how many kg can you buy for ₹315?
19. 19.If 4 kites cost ₹72, how much do 17 kites cost (in ₹)?
20. 20.11 painters can paint a school in 16 days. How many days would 16 painters take, working at the same speed?
21. 21.A hostel has enough food for 8 students for 25 days. How many days will the same food last for 5 students?
22. 22.If 6 cricket balls cost ₹84, how much do 8 cricket balls cost (in ₹)?
23. 23.If 6 cricket balls cost ₹324, how much do 13 cricket balls cost (in ₹)?
24. 24.A car goes 72 km on 8 litres of petrol. How far can it go on 14 litres (in km)?
25. 25.If 5 kg of rice costs ₹275, how many kg can you buy for ₹495?
26. 26.If 8 kites cost ₹248, how much do 18 kites cost (in ₹)?
27. 27.A car goes 88 km on 4 litres of petrol. How far can it go on 40 litres (in km)?
28. 28.If 12 kites cost ₹180, how much do 6 kites cost (in ₹)?
29. 29.8 painters can paint a school in 24 days. How many days would 24 painters take, working at the same speed?
30. 30.A hostel has enough food for 7 students for 10 days. How many days will the same food last for 14 students?
31. 31.A car goes 64 km on 8 litres of petrol. How far can it go on 37 litres (in km)?
32. 32.If 7 erasers cost ₹287, how much do 17 erasers cost (in ₹)?
33. 33.If 11 bottles of juice cost ₹517, how much do 17 bottles of juice cost (in ₹)?
34. 34.11 painters can paint a school in 9 days. How many days would 9 painters take, working at the same speed?
35. 35.A hostel has enough food for 9 students for 20 days. How many days will the same food last for 15 students?
36. 36.If 6 kg of rice costs ₹174, how many kg can you buy for ₹435?
37. 37.6 painters can paint a school in 6 days. How many days would 3 painters take, working at the same speed?
38. 38.If 4 kg of rice costs ₹312, how many kg can you buy for ₹702?
39. 39.A car goes 144 km on 6 litres of petrol. How far can it go on 17 litres (in km)?
40. 40.A car goes 184 km on 8 litres of petrol. How far can it go on 14 litres (in km)?

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