Unitary Method Worksheet

Quantitative aptitude lesson 7: Unitary method · Set 303 · 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 200 km on 10 litres of petrol. How far can it go on 35 litres (in km)?
2. 2.5 painters can paint a school in 4 days. How many days would 4 painters take, working at the same speed?
3. 3.7 painters can paint a school in 10 days. How many days would 5 painters take, working at the same speed?
4. 4.A car goes 24 km on 3 litres of petrol. How far can it go on 20 litres (in km)?
5. 5.If 3 erasers cost ₹90, how much do 18 erasers cost (in ₹)?
6. 6.If 10 kites cost ₹140, how much do 15 kites cost (in ₹)?
7. 7.If 7 mangoes cost ₹343, how much do 5 mangoes cost (in ₹)?
8. 8.If 4 kites cost ₹220, how much do 18 kites cost (in ₹)?
9. 9.8 painters can paint a school in 11 days. How many days would 22 painters take, working at the same speed?
10. 10.If 2 pens cost ₹18, how much do 16 pens cost (in ₹)?
11. 11.3 painters can paint a school in 25 days. How many days would 15 painters take, working at the same speed?
12. 12.If 3 pens cost ₹60, how much do 6 pens cost (in ₹)?
13. 13.If 9 notebooks cost ₹189, how much do 19 notebooks cost (in ₹)?
14. 14.A car goes 176 km on 11 litres of petrol. How far can it go on 15 litres (in km)?
15. 15.If 5 kg of rice costs ₹110, how many kg can you buy for ₹88?
16. 16.A car goes 150 km on 6 litres of petrol. How far can it go on 26 litres (in km)?
17. 17.If 7 kg of rice costs ₹364, how many kg can you buy for ₹156?
18. 18.A car goes 80 km on 4 litres of petrol. How far can it go on 21 litres (in km)?
19. 19.A hostel has enough food for 11 students for 13 days. How many days will the same food last for 13 students?
20. 20.If 4 pens cost ₹216, how much do 8 pens cost (in ₹)?
21. 21.A hostel has enough food for 7 students for 4 days. How many days will the same food last for 14 students?
22. 22.12 painters can paint a school in 7 days. How many days would 6 painters take, working at the same speed?
23. 23.A hostel has enough food for 10 students for 12 days. How many days will the same food last for 5 students?
24. 24.If 2 kg of rice costs ₹68, how many kg can you buy for ₹374?
25. 25.If 6 kg of rice costs ₹480, how many kg can you buy for ₹320?
26. 26.A car goes 80 km on 4 litres of petrol. How far can it go on 3 litres (in km)?
27. 27.If 9 pens cost ₹351, how much do 10 pens cost (in ₹)?
28. 28.If 5 kites cost ₹260, how much do 18 kites cost (in ₹)?
29. 29.A hostel has enough food for 11 students for 6 days. How many days will the same food last for 22 students?
30. 30.If 8 pencil boxes cost ₹336, how much do 9 pencil boxes cost (in ₹)?
31. 31.If 4 pencil boxes cost ₹44, how much do 2 pencil boxes cost (in ₹)?
32. 32.12 painters can paint a school in 14 days. How many days would 4 painters take, working at the same speed?
33. 33.If 3 kg of rice costs ₹252, how many kg can you buy for ₹504?
34. 34.A car goes 240 km on 12 litres of petrol. How far can it go on 16 litres (in km)?
35. 35.A hostel has enough food for 4 students for 18 days. How many days will the same food last for 9 students?
36. 36.If 2 cricket balls cost ₹56, how much do 20 cricket balls cost (in ₹)?
37. 37.6 painters can paint a school in 24 days. How many days would 8 painters take, working at the same speed?
38. 38.If 8 kg of rice costs ₹600, how many kg can you buy for ₹675?
39. 39.11 painters can paint a school in 15 days. How many days would 3 painters take, working at the same speed?
40. 40.11 painters can paint a school in 9 days. How many days would 9 painters take, working at the same speed?

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