Unitary Method Worksheet

Quantitative aptitude lesson 7: Unitary method · Set 489 · 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.A hostel has enough food for 4 students for 17 days. How many days will the same food last for 2 students?
2. 2.A hostel has enough food for 12 students for 24 days. How many days will the same food last for 24 students?
3. 3.If 12 pencil boxes cost ₹108, how much do 18 pencil boxes cost (in ₹)?
4. 4.A hostel has enough food for 5 students for 23 days. How many days will the same food last for 23 students?
5. 5.A car goes 20 km on 2 litres of petrol. How far can it go on 26 litres (in km)?
6. 6.A car goes 60 km on 3 litres of petrol. How far can it go on 33 litres (in km)?
7. 7.A car goes 152 km on 8 litres of petrol. How far can it go on 5 litres (in km)?
8. 8.11 painters can paint a school in 4 days. How many days would 22 painters take, working at the same speed?
9. 9.If 2 kg of rice costs ₹120, how many kg can you buy for ₹720?
10. 10.8 painters can paint a school in 28 days. How many days would 7 painters take, working at the same speed?
11. 11.If 3 kg of rice costs ₹204, how many kg can you buy for ₹340?
12. 12.If 8 kites cost ₹64, how much do 18 kites cost (in ₹)?
13. 13.If 2 pencil boxes cost ₹44, how much do 8 pencil boxes cost (in ₹)?
14. 14.If 5 bottles of juice cost ₹200, how much do 13 bottles of juice cost (in ₹)?
15. 15.If 4 kg of rice costs ₹88, how many kg can you buy for ₹110?
16. 16.If 4 mangoes cost ₹180, how much do 6 mangoes cost (in ₹)?
17. 17.If 5 kg of rice costs ₹400, how many kg can you buy for ₹720?
18. 18.A car goes 72 km on 8 litres of petrol. How far can it go on 10 litres (in km)?
19. 19.A car goes 100 km on 10 litres of petrol. How far can it go on 20 litres (in km)?
20. 20.If 12 bottles of juice cost ₹456, how much do 6 bottles of juice cost (in ₹)?
21. 21.8 painters can paint a school in 10 days. How many days would 2 painters take, working at the same speed?
22. 22.If 2 kg of rice costs ₹84, how many kg can you buy for ₹504?
23. 23.If 8 kg of rice costs ₹552, how many kg can you buy for ₹207?
24. 24.If 2 kg of rice costs ₹78, how many kg can you buy for ₹468?
25. 25.If 9 pens cost ₹522, how much do 15 pens cost (in ₹)?
26. 26.If 7 kg of rice costs ₹602, how many kg can you buy for ₹1204?
27. 27.A car goes 120 km on 12 litres of petrol. How far can it go on 17 litres (in km)?
28. 28.10 painters can paint a school in 26 days. How many days would 13 painters take, working at the same speed?
29. 29.If 7 erasers cost ₹119, how much do 17 erasers cost (in ₹)?
30. 30.A car goes 32 km on 4 litres of petrol. How far can it go on 9 litres (in km)?
31. 31.A car goes 112 km on 8 litres of petrol. How far can it go on 32 litres (in km)?
32. 32.A car goes 60 km on 6 litres of petrol. How far can it go on 39 litres (in km)?
33. 33.A car goes 51 km on 3 litres of petrol. How far can it go on 6 litres (in km)?
34. 34.A car goes 140 km on 7 litres of petrol. How far can it go on 2 litres (in km)?
35. 35.If 7 kg of rice costs ₹567, how many kg can you buy for ₹1215?
36. 36.A hostel has enough food for 11 students for 9 days. How many days will the same food last for 9 students?
37. 37.A car goes 46 km on 2 litres of petrol. How far can it go on 31 litres (in km)?
38. 38.If 8 kg of rice costs ₹672, how many kg can you buy for ₹1092?
39. 39.A car goes 133 km on 7 litres of petrol. How far can it go on 5 litres (in km)?
40. 40.10 painters can paint a school in 28 days. How many days would 20 painters take, working at the same speed?

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