Unitary Method Worksheet

Quantitative aptitude lesson 7: Unitary method · Set 500 · 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 48 km on 4 litres of petrol. How far can it go on 8 litres (in km)?
2. 2.3 painters can paint a school in 21 days. How many days would 21 painters take, working at the same speed?
3. 3.If 5 kg of rice costs ₹245, how many kg can you buy for ₹147?
4. 4.If 9 mangoes cost ₹198, how much do 16 mangoes cost (in ₹)?
5. 5.If 7 kg of rice costs ₹518, how many kg can you buy for ₹962?
6. 6.A car goes 161 km on 7 litres of petrol. How far can it go on 9 litres (in km)?
7. 7.If 10 pens cost ₹480, how much do 7 pens cost (in ₹)?
8. 8.If 12 cricket balls cost ₹708, how much do 19 cricket balls cost (in ₹)?
9. 9.If 3 mangoes cost ₹99, how much do 16 mangoes cost (in ₹)?
10. 10.8 painters can paint a school in 26 days. How many days would 4 painters take, working at the same speed?
11. 11.If 5 kg of rice costs ₹120, how many kg can you buy for ₹288?
12. 12.12 painters can paint a school in 12 days. How many days would 4 painters take, working at the same speed?
13. 13.If 8 notebooks cost ₹128, how much do 17 notebooks cost (in ₹)?
14. 14.A hostel has enough food for 5 students for 12 days. How many days will the same food last for 12 students?
15. 15.A car goes 140 km on 10 litres of petrol. How far can it go on 23 litres (in km)?
16. 16.If 8 kg of rice costs ₹272, how many kg can you buy for ₹340?
17. 17.If 4 cricket balls cost ₹100, how much do 6 cricket balls cost (in ₹)?
18. 18.If 4 erasers cost ₹156, how much do 7 erasers cost (in ₹)?
19. 19.If 11 kites cost ₹429, how much do 7 kites cost (in ₹)?
20. 20.If 3 notebooks cost ₹126, how much do 4 notebooks cost (in ₹)?
21. 21.If 7 kg of rice costs ₹602, how many kg can you buy for ₹1204?
22. 22.A hostel has enough food for 3 students for 25 days. How many days will the same food last for 5 students?
23. 23.If 5 kg of rice costs ₹140, how many kg can you buy for ₹168?
24. 24.A hostel has enough food for 4 students for 25 days. How many days will the same food last for 2 students?
25. 25.2 painters can paint a school in 22 days. How many days would 22 painters take, working at the same speed?
26. 26.A hostel has enough food for 6 students for 23 days. How many days will the same food last for 3 students?
27. 27.If 8 kg of rice costs ₹488, how many kg can you buy for ₹915?
28. 28.If 6 kg of rice costs ₹198, how many kg can you buy for ₹132?
29. 29.A hostel has enough food for 12 students for 6 days. How many days will the same food last for 2 students?
30. 30.9 painters can paint a school in 16 days. How many days would 24 painters take, working at the same speed?
31. 31.If 12 notebooks cost ₹336, how much do 9 notebooks cost (in ₹)?
32. 32.2 painters can paint a school in 30 days. How many days would 10 painters take, working at the same speed?
33. 33.If 4 bottles of juice cost ₹168, how much do 7 bottles of juice cost (in ₹)?
34. 34.3 painters can paint a school in 5 days. How many days would 5 painters take, working at the same speed?
35. 35.If 6 pens cost ₹216, how much do 2 pens cost (in ₹)?
36. 36.A hostel has enough food for 4 students for 19 days. How many days will the same food last for 19 students?
37. 37.If 7 erasers cost ₹105, how much do 13 erasers cost (in ₹)?
38. 38.9 painters can paint a school in 8 days. How many days would 2 painters take, working at the same speed?
39. 39.If 5 pencil boxes cost ₹240, how much do 3 pencil boxes cost (in ₹)?
40. 40.If 5 mangoes cost ₹65, how much do 7 mangoes cost (in ₹)?

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