Unitary Method Worksheet

Quantitative aptitude lesson 7: Unitary method · Set 90 · 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 2 students for 25 days. How many days will the same food last for 10 students?
2. 2.A car goes 60 km on 6 litres of petrol. How far can it go on 37 litres (in km)?
3. 3.If 7 notebooks cost ₹140, how much do 17 notebooks cost (in ₹)?
4. 4.A hostel has enough food for 5 students for 4 days. How many days will the same food last for 10 students?
5. 5.A hostel has enough food for 8 students for 5 days. How many days will the same food last for 20 students?
6. 6.A car goes 64 km on 8 litres of petrol. How far can it go on 36 litres (in km)?
7. 7.If 4 pens cost ₹136, how much do 6 pens cost (in ₹)?
8. 8.2 painters can paint a school in 15 days. How many days would 5 painters take, working at the same speed?
9. 9.A hostel has enough food for 6 students for 18 days. How many days will the same food last for 12 students?
10. 10.3 painters can paint a school in 5 days. How many days would 5 painters take, working at the same speed?
11. 11.If 6 kg of rice costs ₹450, how many kg can you buy for ₹375?
12. 12.If 12 erasers cost ₹96, how much do 2 erasers cost (in ₹)?
13. 13.If 4 kg of rice costs ₹300, how many kg can you buy for ₹975?
14. 14.If 7 erasers cost ₹224, how much do 5 erasers cost (in ₹)?
15. 15.4 painters can paint a school in 9 days. How many days would 3 painters take, working at the same speed?
16. 16.If 5 kg of rice costs ₹110, how many kg can you buy for ₹132?
17. 17.If 6 notebooks cost ₹108, how much do 4 notebooks cost (in ₹)?
18. 18.If 7 kg of rice costs ₹182, how many kg can you buy for ₹260?
19. 19.5 painters can paint a school in 18 days. How many days would 15 painters take, working at the same speed?
20. 20.If 5 mangoes cost ₹165, how much do 14 mangoes cost (in ₹)?
21. 21.If 3 cricket balls cost ₹87, how much do 2 cricket balls cost (in ₹)?
22. 22.If 6 pens cost ₹66, how much do 16 pens cost (in ₹)?
23. 23.A car goes 27 km on 3 litres of petrol. How far can it go on 33 litres (in km)?
24. 24.A car goes 161 km on 7 litres of petrol. How far can it go on 26 litres (in km)?
25. 25.4 painters can paint a school in 9 days. How many days would 12 painters take, working at the same speed?
26. 26.If 5 kg of rice costs ₹215, how many kg can you buy for ₹602?
27. 27.A car goes 68 km on 4 litres of petrol. How far can it go on 27 litres (in km)?
28. 28.3 painters can paint a school in 30 days. How many days would 18 painters take, working at the same speed?
29. 29.2 painters can paint a school in 28 days. How many days would 7 painters take, working at the same speed?
30. 30.If 6 notebooks cost ₹258, how much do 12 notebooks cost (in ₹)?
31. 31.A car goes 40 km on 5 litres of petrol. How far can it go on 35 litres (in km)?
32. 32.If 2 mangoes cost ₹100, how much do 9 mangoes cost (in ₹)?
33. 33.If 12 pencil boxes cost ₹660, how much do 19 pencil boxes cost (in ₹)?
34. 34.2 painters can paint a school in 18 days. How many days would 18 painters take, working at the same speed?
35. 35.A car goes 76 km on 4 litres of petrol. How far can it go on 20 litres (in km)?
36. 36.If 4 kg of rice costs ₹196, how many kg can you buy for ₹294?
37. 37.A car goes 90 km on 10 litres of petrol. How far can it go on 37 litres (in km)?
38. 38.If 6 pens cost ₹102, how much do 3 pens cost (in ₹)?
39. 39.If 2 erasers cost ₹54, how much do 13 erasers cost (in ₹)?
40. 40.8 painters can paint a school in 5 days. How many days would 10 painters take, working at the same speed?

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