Unitary Method Worksheet

Quantitative aptitude lesson 7: Unitary method · Set 9 · 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. 1.7 painters can paint a school in 8 days. How many days would 8 painters take, working at the same speed?
2. 2.If 10 erasers cost ₹330, how much do 15 erasers cost (in ₹)?
3. 3.If 3 kites cost ₹147, how much do 15 kites cost (in ₹)?
4. 4.If 2 notebooks cost ₹76, how much do 10 notebooks cost (in ₹)?
5. 5.A car goes 132 km on 12 litres of petrol. How far can it go on 39 litres (in km)?
6. 6.A car goes 81 km on 9 litres of petrol. How far can it go on 34 litres (in km)?
7. 7.A car goes 30 km on 3 litres of petrol. How far can it go on 35 litres (in km)?
8. 8.8 painters can paint a school in 23 days. How many days would 23 painters take, working at the same speed?
9. 9.A car goes 171 km on 9 litres of petrol. How far can it go on 18 litres (in km)?
10. 10.A hostel has enough food for 2 students for 20 days. How many days will the same food last for 10 students?
11. 11.A car goes 96 km on 8 litres of petrol. How far can it go on 11 litres (in km)?
12. 12.If 9 kg of rice costs ₹648, how many kg can you buy for ₹288?
13. 13.7 painters can paint a school in 5 days. How many days would 5 painters take, working at the same speed?
14. 14.If 2 pens cost ₹38, how much do 9 pens cost (in ₹)?
15. 15.A car goes 60 km on 5 litres of petrol. How far can it go on 10 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.If 10 erasers cost ₹100, how much do 17 erasers cost (in ₹)?
18. 18.A hostel has enough food for 2 students for 12 days. How many days will the same food last for 6 students?
19. 19.A hostel has enough food for 9 students for 5 days. How many days will the same food last for 15 students?
20. 20.If 4 erasers cost ₹124, how much do 12 erasers cost (in ₹)?
21. 21.A car goes 33 km on 3 litres of petrol. How far can it go on 17 litres (in km)?
22. 22.If 4 notebooks cost ₹52, how much do 13 notebooks cost (in ₹)?
23. 23.A hostel has enough food for 4 students for 14 days. How many days will the same food last for 14 students?
24. 24.If 12 mangoes cost ₹60, how much do 5 mangoes cost (in ₹)?
25. 25.11 painters can paint a school in 14 days. How many days would 7 painters take, working at the same speed?
26. 26.4 painters can paint a school in 15 days. How many days would 6 painters take, working at the same speed?
27. 27.If 5 mangoes cost ₹270, how much do 12 mangoes cost (in ₹)?
28. 28.12 painters can paint a school in 28 days. How many days would 6 painters take, working at the same speed?
29. 29.A car goes 110 km on 10 litres of petrol. How far can it go on 32 litres (in km)?
30. 30.A hostel has enough food for 11 students for 24 days. How many days will the same food last for 6 students?
31. 31.9 painters can paint a school in 18 days. How many days would 6 painters take, working at the same speed?
32. 32.If 9 kg of rice costs ₹252, how many kg can you buy for ₹364?
33. 33.2 painters can paint a school in 4 days. How many days would 4 painters take, working at the same speed?
34. 34.A hostel has enough food for 12 students for 26 days. How many days will the same food last for 13 students?
35. 35.If 2 pens cost ₹80, how much do 4 pens cost (in ₹)?
36. 36.If 2 kites cost ₹86, how much do 5 kites cost (in ₹)?
37. 37.If 4 notebooks cost ₹224, how much do 19 notebooks cost (in ₹)?
38. 38.If 10 pens cost ₹200, how much do 4 pens cost (in ₹)?
39. 39.12 painters can paint a school in 13 days. How many days would 3 painters take, working at the same speed?
40. 40.If 11 erasers cost ₹77, how much do 12 erasers cost (in ₹)?

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