Unitary Method Worksheet

Quantitative aptitude lesson 7: Unitary method · Set 358 · 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 car goes 63 km on 7 litres of petrol. How far can it go on 2 litres (in km)?
2. 2.4 painters can paint a school in 7 days. How many days would 2 painters take, working at the same speed?
3. 3.A car goes 70 km on 5 litres of petrol. How far can it go on 21 litres (in km)?
4. 4.If 4 notebooks cost ₹28, how much do 18 notebooks cost (in ₹)?
5. 5.A hostel has enough food for 7 students for 14 days. How many days will the same food last for 2 students?
6. 6.A hostel has enough food for 5 students for 4 days. How many days will the same food last for 10 students?
7. 7.If 3 kg of rice costs ₹249, how many kg can you buy for ₹747?
8. 8.9 painters can paint a school in 5 days. How many days would 5 painters take, working at the same speed?
9. 9.If 6 kg of rice costs ₹342, how many kg can you buy for ₹114?
10. 10.If 2 kg of rice costs ₹158, how many kg can you buy for ₹395?
11. 11.If 7 kg of rice costs ₹490, how many kg can you buy for ₹1050?
12. 12.If 4 erasers cost ₹48, how much do 2 erasers cost (in ₹)?
13. 13.If 8 kg of rice costs ₹336, how many kg can you buy for ₹168?
14. 14.A hostel has enough food for 6 students for 22 days. How many days will the same food last for 12 students?
15. 15.If 3 kg of rice costs ₹174, how many kg can you buy for ₹116?
16. 16.6 painters can paint a school in 7 days. How many days would 21 painters take, working at the same speed?
17. 17.8 painters can paint a school in 4 days. How many days would 4 painters take, working at the same speed?
18. 18.A car goes 90 km on 5 litres of petrol. How far can it go on 8 litres (in km)?
19. 19.If 6 kg of rice costs ₹510, how many kg can you buy for ₹1190?
20. 20.If 3 kg of rice costs ₹81, how many kg can you buy for ₹351?
21. 21.A car goes 187 km on 11 litres of petrol. How far can it go on 33 litres (in km)?
22. 22.A car goes 26 km on 2 litres of petrol. How far can it go on 3 litres (in km)?
23. 23.A car goes 144 km on 8 litres of petrol. How far can it go on 31 litres (in km)?
24. 24.A car goes 171 km on 9 litres of petrol. How far can it go on 37 litres (in km)?
25. 25.A car goes 128 km on 8 litres of petrol. How far can it go on 39 litres (in km)?
26. 26.A car goes 147 km on 7 litres of petrol. How far can it go on 24 litres (in km)?
27. 27.4 painters can paint a school in 24 days. How many days would 12 painters take, working at the same speed?
28. 28.A car goes 114 km on 6 litres of petrol. How far can it go on 16 litres (in km)?
29. 29.If 9 kg of rice costs ₹189, how many kg can you buy for ₹84?
30. 30.A car goes 48 km on 2 litres of petrol. How far can it go on 35 litres (in km)?
31. 31.If 2 erasers cost ₹80, how much do 4 erasers cost (in ₹)?
32. 32.If 7 cricket balls cost ₹280, how much do 8 cricket balls cost (in ₹)?
33. 33.If 12 mangoes cost ₹168, how much do 13 mangoes cost (in ₹)?
34. 34.A car goes 81 km on 9 litres of petrol. How far can it go on 25 litres (in km)?
35. 35.10 painters can paint a school in 30 days. How many days would 12 painters take, working at the same speed?
36. 36.A hostel has enough food for 7 students for 4 days. How many days will the same food last for 14 students?
37. 37.A hostel has enough food for 3 students for 8 days. How many days will the same food last for 8 students?
38. 38.If 8 pencil boxes cost ₹232, how much do 15 pencil boxes cost (in ₹)?
39. 39.A car goes 147 km on 7 litres of petrol. How far can it go on 28 litres (in km)?
40. 40.A car goes 66 km on 6 litres of petrol. How far can it go on 35 litres (in km)?

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