Unitary Method Worksheet

Quantitative aptitude lesson 7: Unitary method · Set 420 · 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 10 students for 21 days. How many days will the same food last for 6 students?
2. 2.If 4 kg of rice costs ₹116, how many kg can you buy for ₹290?
3. 3.A hostel has enough food for 3 students for 7 days. How many days will the same food last for 7 students?
4. 4.If 5 kg of rice costs ₹400, how many kg can you buy for ₹240?
5. 5.A car goes 180 km on 12 litres of petrol. How far can it go on 20 litres (in km)?
6. 6.10 painters can paint a school in 19 days. How many days would 19 painters take, working at the same speed?
7. 7.If 5 erasers cost ₹90, how much do 17 erasers cost (in ₹)?
8. 8.3 painters can paint a school in 28 days. How many days would 6 painters take, working at the same speed?
9. 9.If 2 mangoes cost ₹14, how much do 13 mangoes cost (in ₹)?
10. 10.If 11 notebooks cost ₹297, how much do 6 notebooks cost (in ₹)?
11. 11.If 4 notebooks cost ₹204, how much do 13 notebooks cost (in ₹)?
12. 12.If 2 erasers cost ₹106, how much do 5 erasers cost (in ₹)?
13. 13.If 8 kg of rice costs ₹256, how many kg can you buy for ₹288?
14. 14.A car goes 250 km on 10 litres of petrol. How far can it go on 20 litres (in km)?
15. 15.A car goes 88 km on 8 litres of petrol. How far can it go on 15 litres (in km)?
16. 16.A hostel has enough food for 12 students for 4 days. How many days will the same food last for 6 students?
17. 17.A car goes 125 km on 5 litres of petrol. How far can it go on 32 litres (in km)?
18. 18.A car goes 88 km on 8 litres of petrol. How far can it go on 17 litres (in km)?
19. 19.If 5 kg of rice costs ₹445, how many kg can you buy for ₹979?
20. 20.A car goes 20 km on 2 litres of petrol. How far can it go on 25 litres (in km)?
21. 21.If 8 kg of rice costs ₹440, how many kg can you buy for ₹825?
22. 22.If 8 kites cost ₹192, how much do 7 kites cost (in ₹)?
23. 23.A car goes 165 km on 11 litres of petrol. How far can it go on 36 litres (in km)?
24. 24.A car goes 16 km on 2 litres of petrol. How far can it go on 39 litres (in km)?
25. 25.If 9 kg of rice costs ₹261, how many kg can you buy for ₹319?
26. 26.A car goes 55 km on 5 litres of petrol. How far can it go on 11 litres (in km)?
27. 27.A car goes 51 km on 3 litres of petrol. How far can it go on 9 litres (in km)?
28. 28.If 7 kg of rice costs ₹210, how many kg can you buy for ₹120?
29. 29.If 4 kg of rice costs ₹112, how many kg can you buy for ₹252?
30. 30.A car goes 99 km on 11 litres of petrol. How far can it go on 4 litres (in km)?
31. 31.A hostel has enough food for 9 students for 4 days. How many days will the same food last for 2 students?
32. 32.A car goes 192 km on 8 litres of petrol. How far can it go on 24 litres (in km)?
33. 33.A hostel has enough food for 12 students for 8 days. How many days will the same food last for 3 students?
34. 34.9 painters can paint a school in 30 days. How many days would 5 painters take, working at the same speed?
35. 35.A hostel has enough food for 4 students for 26 days. How many days will the same food last for 8 students?
36. 36.A hostel has enough food for 8 students for 21 days. How many days will the same food last for 3 students?
37. 37.If 8 kg of rice costs ₹640, how many kg can you buy for ₹560?
38. 38.A car goes 57 km on 3 litres of petrol. How far can it go on 17 litres (in km)?
39. 39.If 7 kg of rice costs ₹196, how many kg can you buy for ₹224?
40. 40.If 6 kg of rice costs ₹342, how many kg can you buy for ₹570?

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