Unitary Method Worksheet

Quantitative aptitude lesson 7: Unitary method · Set 121 · 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 10 days. How many days will the same food last for 2 students?
2. 2.A hostel has enough food for 11 students for 19 days. How many days will the same food last for 19 students?
3. 3.A car goes 198 km on 11 litres of petrol. How far can it go on 36 litres (in km)?
4. 4.A hostel has enough food for 12 students for 26 days. How many days will the same food last for 8 students?
5. 5.12 painters can paint a school in 10 days. How many days would 6 painters take, working at the same speed?
6. 6.A car goes 32 km on 4 litres of petrol. How far can it go on 29 litres (in km)?
7. 7.A car goes 84 km on 7 litres of petrol. How far can it go on 9 litres (in km)?
8. 8.If 9 kg of rice costs ₹684, how many kg can you buy for ₹1140?
9. 9.If 8 kg of rice costs ₹320, how many kg can you buy for ₹200?
10. 10.If 9 mangoes cost ₹315, how much do 15 mangoes cost (in ₹)?
11. 11.12 painters can paint a school in 16 days. How many days would 24 painters take, working at the same speed?
12. 12.A hostel has enough food for 2 students for 27 days. How many days will the same food last for 18 students?
13. 13.If 7 kg of rice costs ₹329, how many kg can you buy for ₹141?
14. 14.If 9 kg of rice costs ₹513, how many kg can you buy for ₹171?
15. 15.If 2 kg of rice costs ₹56, how many kg can you buy for ₹196?
16. 16.If 5 pens cost ₹215, how much do 2 pens cost (in ₹)?
17. 17.A car goes 161 km on 7 litres of petrol. How far can it go on 20 litres (in km)?
18. 18.12 painters can paint a school in 20 days. How many days would 6 painters take, working at the same speed?
19. 19.If 4 kg of rice costs ₹328, how many kg can you buy for ₹246?
20. 20.If 12 notebooks cost ₹528, how much do 4 notebooks cost (in ₹)?
21. 21.A hostel has enough food for 3 students for 16 days. How many days will the same food last for 24 students?
22. 22.If 8 kg of rice costs ₹176, how many kg can you buy for ₹132?
23. 23.A car goes 78 km on 6 litres of petrol. How far can it go on 34 litres (in km)?
24. 24.A car goes 112 km on 8 litres of petrol. How far can it go on 32 litres (in km)?
25. 25.A hostel has enough food for 8 students for 18 days. How many days will the same food last for 4 students?
26. 26.A hostel has enough food for 5 students for 12 days. How many days will the same food last for 20 students?
27. 27.A hostel has enough food for 8 students for 8 days. How many days will the same food last for 2 students?
28. 28.If 3 kg of rice costs ₹270, how many kg can you buy for ₹720?
29. 29.A car goes 189 km on 9 litres of petrol. How far can it go on 11 litres (in km)?
30. 30.If 11 pens cost ₹638, how much do 6 pens cost (in ₹)?
31. 31.If 5 pens cost ₹285, how much do 19 pens cost (in ₹)?
32. 32.If 12 erasers cost ₹372, how much do 10 erasers cost (in ₹)?
33. 33.If 10 mangoes cost ₹130, how much do 6 mangoes cost (in ₹)?
34. 34.A car goes 200 km on 10 litres of petrol. How far can it go on 6 litres (in km)?
35. 35.A car goes 65 km on 5 litres of petrol. How far can it go on 38 litres (in km)?
36. 36.A car goes 110 km on 11 litres of petrol. How far can it go on 19 litres (in km)?
37. 37.A car goes 72 km on 3 litres of petrol. How far can it go on 27 litres (in km)?
38. 38.If 4 pencil boxes cost ₹200, how much do 6 pencil boxes cost (in ₹)?
39. 39.A hostel has enough food for 10 students for 20 days. How many days will the same food last for 8 students?
40. 40.If 9 kg of rice costs ₹792, how many kg can you buy for ₹1144?

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