Unitary Method Worksheet

Quantitative aptitude lesson 7: Unitary method · Set 110 · 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 80 km on 8 litres of petrol. How far can it go on 39 litres (in km)?
2. 2.A hostel has enough food for 11 students for 21 days. How many days will the same food last for 7 students?
3. 3.5 painters can paint a school in 26 days. How many days would 10 painters take, working at the same speed?
4. 4.6 painters can paint a school in 20 days. How many days would 20 painters take, working at the same speed?
5. 5.4 painters can paint a school in 4 days. How many days would 8 painters take, working at the same speed?
6. 6.If 2 kg of rice costs ₹160, how many kg can you buy for ₹1040?
7. 7.A hostel has enough food for 11 students for 28 days. How many days will the same food last for 7 students?
8. 8.If 9 erasers cost ₹153, how much do 20 erasers cost (in ₹)?
9. 9.If 7 kg of rice costs ₹161, how many kg can you buy for ₹115?
10. 10.If 10 pens cost ₹220, how much do 8 pens cost (in ₹)?
11. 11.If 6 notebooks cost ₹258, how much do 2 notebooks cost (in ₹)?
12. 12.A car goes 22 km on 2 litres of petrol. How far can it go on 15 litres (in km)?
13. 13.If 5 kg of rice costs ₹375, how many kg can you buy for ₹600?
14. 14.If 3 pencil boxes cost ₹126, how much do 13 pencil boxes cost (in ₹)?
15. 15.A car goes 144 km on 6 litres of petrol. How far can it go on 9 litres (in km)?
16. 16.A car goes 81 km on 9 litres of petrol. How far can it go on 32 litres (in km)?
17. 17.If 2 kg of rice costs ₹52, how many kg can you buy for ₹156?
18. 18.A car goes 184 km on 8 litres of petrol. How far can it go on 9 litres (in km)?
19. 19.If 5 notebooks cost ₹250, how much do 4 notebooks cost (in ₹)?
20. 20.If 6 kg of rice costs ₹288, how many kg can you buy for ₹480?
21. 21.A car goes 18 km on 2 litres of petrol. How far can it go on 15 litres (in km)?
22. 22.A hostel has enough food for 12 students for 27 days. How many days will the same food last for 9 students?
23. 23.If 5 pens cost ₹110, how much do 3 pens cost (in ₹)?
24. 24.If 3 kites cost ₹96, how much do 14 kites cost (in ₹)?
25. 25.If 4 notebooks cost ₹196, how much do 10 notebooks cost (in ₹)?
26. 26.5 painters can paint a school in 22 days. How many days would 10 painters take, working at the same speed?
27. 27.A hostel has enough food for 2 students for 13 days. How many days will the same food last for 13 students?
28. 28.A hostel has enough food for 10 students for 10 days. How many days will the same food last for 2 students?
29. 29.If 9 kites cost ₹504, how much do 3 kites cost (in ₹)?
30. 30.If 7 kg of rice costs ₹630, how many kg can you buy for ₹270?
31. 31.If 2 kg of rice costs ₹64, how many kg can you buy for ₹480?
32. 32.A hostel has enough food for 10 students for 25 days. How many days will the same food last for 5 students?
33. 33.A car goes 143 km on 11 litres of petrol. How far can it go on 23 litres (in km)?
34. 34.A car goes 133 km on 7 litres of petrol. How far can it go on 13 litres (in km)?
35. 35.If 9 pencil boxes cost ₹315, how much do 19 pencil boxes cost (in ₹)?
36. 36.A car goes 69 km on 3 litres of petrol. How far can it go on 10 litres (in km)?
37. 37.11 painters can paint a school in 8 days. How many days would 2 painters take, working at the same speed?
38. 38.If 3 kg of rice costs ₹132, how many kg can you buy for ₹440?
39. 39.If 3 kg of rice costs ₹126, how many kg can you buy for ₹588?
40. 40.If 4 kg of rice costs ₹88, how many kg can you buy for ₹264?

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