Unitary Method Worksheet

Quantitative aptitude lesson 7: Unitary method · Set 392 · 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. 1.8 painters can paint a school in 5 days. How many days would 2 painters take, working at the same speed?
2. 2.A hostel has enough food for 9 students for 16 days. How many days will the same food last for 3 students?
3. 3.If 11 notebooks cost ₹572, how much do 5 notebooks cost (in ₹)?
4. 4.If 11 kites cost ₹385, how much do 18 kites cost (in ₹)?
5. 5.10 painters can paint a school in 7 days. How many days would 2 painters take, working at the same speed?
6. 6.6 painters can paint a school in 22 days. How many days would 22 painters take, working at the same speed?
7. 7.A car goes 40 km on 4 litres of petrol. How far can it go on 39 litres (in km)?
8. 8.A hostel has enough food for 3 students for 9 days. How many days will the same food last for 9 students?
9. 9.If 8 kg of rice costs ₹184, how many kg can you buy for ₹322?
10. 10.A hostel has enough food for 3 students for 5 days. How many days will the same food last for 5 students?
11. 11.If 2 kg of rice costs ₹98, how many kg can you buy for ₹245?
12. 12.If 8 kg of rice costs ₹280, how many kg can you buy for ₹140?
13. 13.A car goes 168 km on 12 litres of petrol. How far can it go on 9 litres (in km)?
14. 14.If 3 kg of rice costs ₹126, how many kg can you buy for ₹630?
15. 15.If 2 kg of rice costs ₹126, how many kg can you buy for ₹945?
16. 16.A car goes 22 km on 2 litres of petrol. How far can it go on 8 litres (in km)?
17. 17.If 2 kg of rice costs ₹66, how many kg can you buy for ₹363?
18. 18.If 6 kg of rice costs ₹180, how many kg can you buy for ₹420?
19. 19.11 painters can paint a school in 28 days. How many days would 22 painters take, working at the same speed?
20. 20.If 7 pens cost ₹42, how much do 16 pens cost (in ₹)?
21. 21.A car goes 230 km on 10 litres of petrol. How far can it go on 26 litres (in km)?
22. 22.A car goes 20 km on 2 litres of petrol. How far can it go on 24 litres (in km)?
23. 23.A car goes 70 km on 5 litres of petrol. How far can it go on 12 litres (in km)?
24. 24.If 4 mangoes cost ₹116, how much do 10 mangoes cost (in ₹)?
25. 25.If 2 kg of rice costs ₹72, how many kg can you buy for ₹432?
26. 26.If 7 kg of rice costs ₹287, how many kg can you buy for ₹164?
27. 27.A car goes 36 km on 2 litres of petrol. How far can it go on 25 litres (in km)?
28. 28.5 painters can paint a school in 24 days. How many days would 3 painters take, working at the same speed?
29. 29.11 painters can paint a school in 25 days. How many days would 5 painters take, working at the same speed?
30. 30.If 5 kg of rice costs ₹130, how many kg can you buy for ₹52?
31. 31.If 7 bottles of juice cost ₹182, how much do 14 bottles of juice cost (in ₹)?
32. 32.If 2 kg of rice costs ₹174, how many kg can you buy for ₹1305?
33. 33.3 painters can paint a school in 25 days. How many days would 15 painters take, working at the same speed?
34. 34.A hostel has enough food for 9 students for 21 days. How many days will the same food last for 21 students?
35. 35.6 painters can paint a school in 27 days. How many days would 3 painters take, working at the same speed?
36. 36.If 10 erasers cost ₹390, how much do 3 erasers cost (in ₹)?
37. 37.A car goes 96 km on 12 litres of petrol. How far can it go on 36 litres (in km)?
38. 38.If 9 kg of rice costs ₹621, how many kg can you buy for ₹138?
39. 39.4 painters can paint a school in 9 days. How many days would 6 painters take, working at the same speed?
40. 40.If 8 kg of rice costs ₹568, how many kg can you buy for ₹284?

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