Unitary Method Worksheet

Quantitative aptitude lesson 7: Unitary method · Set 238 · 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 108 km on 9 litres of petrol. How far can it go on 30 litres (in km)?
2. 2.A car goes 161 km on 7 litres of petrol. How far can it go on 30 litres (in km)?
3. 3.5 painters can paint a school in 12 days. How many days would 12 painters take, working at the same speed?
4. 4.A hostel has enough food for 3 students for 28 days. How many days will the same food last for 2 students?
5. 5.If 6 notebooks cost ₹120, how much do 7 notebooks cost (in ₹)?
6. 6.If 9 kg of rice costs ₹234, how many kg can you buy for ₹338?
7. 7.If 12 pens cost ₹168, how much do 19 pens cost (in ₹)?
8. 8.A hostel has enough food for 12 students for 11 days. How many days will the same food last for 3 students?
9. 9.5 painters can paint a school in 23 days. How many days would 23 painters take, working at the same speed?
10. 10.A car goes 102 km on 6 litres of petrol. How far can it go on 33 litres (in km)?
11. 11.If 8 kg of rice costs ₹496, how many kg can you buy for ₹806?
12. 12.If 2 kg of rice costs ₹162, how many kg can you buy for ₹810?
13. 13.A car goes 288 km on 12 litres of petrol. How far can it go on 14 litres (in km)?
14. 14.If 6 kg of rice costs ₹234, how many kg can you buy for ₹78?
15. 15.A car goes 88 km on 11 litres of petrol. How far can it go on 3 litres (in km)?
16. 16.11 painters can paint a school in 6 days. How many days would 3 painters take, working at the same speed?
17. 17.If 8 mangoes cost ₹104, how much do 20 mangoes cost (in ₹)?
18. 18.A hostel has enough food for 4 students for 9 days. How many days will the same food last for 18 students?
19. 19.If 3 kg of rice costs ₹147, how many kg can you buy for ₹245?
20. 20.If 3 kg of rice costs ₹186, how many kg can you buy for ₹372?
21. 21.If 6 kg of rice costs ₹516, how many kg can you buy for ₹172?
22. 22.A hostel has enough food for 5 students for 16 days. How many days will the same food last for 20 students?
23. 23.If 3 kg of rice costs ₹138, how many kg can you buy for ₹414?
24. 24.If 8 bottles of juice cost ₹40, how much do 19 bottles of juice cost (in ₹)?
25. 25.If 4 cricket balls cost ₹140, how much do 2 cricket balls cost (in ₹)?
26. 26.If 4 erasers cost ₹124, how much do 14 erasers cost (in ₹)?
27. 27.5 painters can paint a school in 14 days. How many days would 7 painters take, working at the same speed?
28. 28.If 3 pens cost ₹24, how much do 10 pens cost (in ₹)?
29. 29.A hostel has enough food for 12 students for 17 days. How many days will the same food last for 4 students?
30. 30.If 9 kg of rice costs ₹612, how many kg can you buy for ₹204?
31. 31.If 9 kg of rice costs ₹477, how many kg can you buy for ₹583?
32. 32.A hostel has enough food for 10 students for 16 days. How many days will the same food last for 4 students?
33. 33.10 painters can paint a school in 17 days. How many days would 17 painters take, working at the same speed?
34. 34.A car goes 48 km on 6 litres of petrol. How far can it go on 21 litres (in km)?
35. 35.If 8 mangoes cost ₹128, how much do 11 mangoes cost (in ₹)?
36. 36.If 3 notebooks cost ₹9, how much do 13 notebooks cost (in ₹)?
37. 37.If 4 kg of rice costs ₹352, how many kg can you buy for ₹880?
38. 38.If 2 kg of rice costs ₹170, how many kg can you buy for ₹255?
39. 39.A hostel has enough food for 6 students for 26 days. How many days will the same food last for 3 students?
40. 40.If 3 erasers cost ₹153, how much do 20 erasers cost (in ₹)?

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