Unitary Method Worksheet

Quantitative aptitude lesson 7: Unitary method · Set 54 · 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.If 5 pens cost ₹100, how much do 12 pens cost (in ₹)?
2. 2.If 5 pens cost ₹210, how much do 10 pens cost (in ₹)?
3. 3.A hostel has enough food for 3 students for 27 days. How many days will the same food last for 9 students?
4. 4.5 painters can paint a school in 21 days. How many days would 21 painters take, working at the same speed?
5. 5.If 9 kg of rice costs ₹513, how many kg can you buy for ₹798?
6. 6.If 3 notebooks cost ₹21, how much do 2 notebooks cost (in ₹)?
7. 7.If 4 kg of rice costs ₹80, how many kg can you buy for ₹180?
8. 8.If 5 kg of rice costs ₹220, how many kg can you buy for ₹132?
9. 9.If 3 pencil boxes cost ₹162, how much do 9 pencil boxes cost (in ₹)?
10. 10.A hostel has enough food for 12 students for 18 days. How many days will the same food last for 24 students?
11. 11.A car goes 90 km on 10 litres of petrol. How far can it go on 22 litres (in km)?
12. 12.If 9 kg of rice costs ₹810, how many kg can you buy for ₹450?
13. 13.8 painters can paint a school in 11 days. How many days would 4 painters take, working at the same speed?
14. 14.If 4 kg of rice costs ₹304, how many kg can you buy for ₹228?
15. 15.If 5 kg of rice costs ₹390, how many kg can you buy for ₹546?
16. 16.A hostel has enough food for 3 students for 18 days. How many days will the same food last for 2 students?
17. 17.7 painters can paint a school in 19 days. How many days would 19 painters take, working at the same speed?
18. 18.6 painters can paint a school in 19 days. How many days would 2 painters take, working at the same speed?
19. 19.7 painters can paint a school in 6 days. How many days would 2 painters take, working at the same speed?
20. 20.If 4 erasers cost ₹200, how much do 11 erasers cost (in ₹)?
21. 21.A car goes 45 km on 3 litres of petrol. How far can it go on 2 litres (in km)?
22. 22.If 6 kg of rice costs ₹324, how many kg can you buy for ₹594?
23. 23.3 painters can paint a school in 14 days. How many days would 7 painters take, working at the same speed?
24. 24.6 painters can paint a school in 25 days. How many days would 3 painters take, working at the same speed?
25. 25.If 3 pens cost ₹141, how much do 14 pens cost (in ₹)?
26. 26.If 6 pens cost ₹282, how much do 19 pens cost (in ₹)?
27. 27.If 6 kg of rice costs ₹138, how many kg can you buy for ₹161?
28. 28.10 painters can paint a school in 23 days. How many days would 5 painters take, working at the same speed?
29. 29.If 9 kg of rice costs ₹810, how many kg can you buy for ₹630?
30. 30.If 4 mangoes cost ₹196, how much do 17 mangoes cost (in ₹)?
31. 31.If 6 kg of rice costs ₹366, how many kg can you buy for ₹427?
32. 32.A car goes 84 km on 4 litres of petrol. How far can it go on 39 litres (in km)?
33. 33.6 painters can paint a school in 7 days. How many days would 7 painters take, working at the same speed?
34. 34.If 7 erasers cost ₹378, how much do 5 erasers cost (in ₹)?
35. 35.If 3 kg of rice costs ₹99, how many kg can you buy for ₹330?
36. 36.If 3 kg of rice costs ₹84, how many kg can you buy for ₹112?
37. 37.If 9 kites cost ₹243, how much do 7 kites cost (in ₹)?
38. 38.If 12 notebooks cost ₹120, how much do 19 notebooks cost (in ₹)?
39. 39.If 8 pens cost ₹224, how much do 6 pens cost (in ₹)?
40. 40.If 2 mangoes cost ₹120, how much do 11 mangoes cost (in ₹)?

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