Unitary Method Worksheet

Quantitative aptitude lesson 7: Unitary method · Set 92 · 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 hostel has enough food for 7 students for 21 days. How many days will the same food last for 3 students?
2. 2.A car goes 90 km on 5 litres of petrol. How far can it go on 20 litres (in km)?
3. 3.If 2 kg of rice costs ₹126, how many kg can you buy for ₹378?
4. 4.10 painters can paint a school in 18 days. How many days would 9 painters take, working at the same speed?
5. 5.A hostel has enough food for 4 students for 29 days. How many days will the same food last for 2 students?
6. 6.A car goes 48 km on 2 litres of petrol. How far can it go on 14 litres (in km)?
7. 7.12 painters can paint a school in 7 days. How many days would 3 painters take, working at the same speed?
8. 8.A hostel has enough food for 3 students for 15 days. How many days will the same food last for 5 students?
9. 9.If 4 kg of rice costs ₹216, how many kg can you buy for ₹324?
10. 10.If 3 kg of rice costs ₹159, how many kg can you buy for ₹742?
11. 11.If 8 cricket balls cost ₹184, how much do 3 cricket balls cost (in ₹)?
12. 12.If 8 kg of rice costs ₹560, how many kg can you buy for ₹700?
13. 13.2 painters can paint a school in 11 days. How many days would 11 painters take, working at the same speed?
14. 14.3 painters can paint a school in 26 days. How many days would 2 painters take, working at the same speed?
15. 15.If 2 pens cost ₹90, how much do 5 pens cost (in ₹)?
16. 16.If 12 bottles of juice cost ₹48, how much do 15 bottles of juice cost (in ₹)?
17. 17.If 7 mangoes cost ₹406, how much do 12 mangoes cost (in ₹)?
18. 18.A hostel has enough food for 9 students for 8 days. How many days will the same food last for 12 students?
19. 19.If 2 pencil boxes cost ₹116, how much do 3 pencil boxes cost (in ₹)?
20. 20.If 4 cricket balls cost ₹172, how much do 7 cricket balls cost (in ₹)?
21. 21.A car goes 70 km on 7 litres of petrol. How far can it go on 11 litres (in km)?
22. 22.If 3 kg of rice costs ₹123, how many kg can you buy for ₹205?
23. 23.If 6 kg of rice costs ₹180, how many kg can you buy for ₹390?
24. 24.A car goes 27 km on 3 litres of petrol. How far can it go on 39 litres (in km)?
25. 25.A hostel has enough food for 3 students for 5 days. How many days will the same food last for 5 students?
26. 26.If 9 erasers cost ₹486, how much do 12 erasers cost (in ₹)?
27. 27.6 painters can paint a school in 16 days. How many days would 4 painters take, working at the same speed?
28. 28.A car goes 63 km on 3 litres of petrol. How far can it go on 28 litres (in km)?
29. 29.10 painters can paint a school in 13 days. How many days would 13 painters take, working at the same speed?
30. 30.5 painters can paint a school in 9 days. How many days would 3 painters take, working at the same speed?
31. 31.A car goes 230 km on 10 litres of petrol. How far can it go on 7 litres (in km)?
32. 32.If 11 notebooks cost ₹374, how much do 13 notebooks cost (in ₹)?
33. 33.A car goes 90 km on 10 litres of petrol. How far can it go on 39 litres (in km)?
34. 34.A car goes 36 km on 4 litres of petrol. How far can it go on 13 litres (in km)?
35. 35.If 2 bottles of juice cost ₹12, how much do 4 bottles of juice cost (in ₹)?
36. 36.7 painters can paint a school in 9 days. How many days would 21 painters take, working at the same speed?
37. 37.A car goes 76 km on 4 litres of petrol. How far can it go on 40 litres (in km)?
38. 38.A hostel has enough food for 12 students for 10 days. How many days will the same food last for 4 students?
39. 39.A hostel has enough food for 9 students for 19 days. How many days will the same food last for 3 students?
40. 40.A car goes 160 km on 8 litres of petrol. How far can it go on 36 litres (in km)?

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