Unitary Method Worksheet

Quantitative aptitude lesson 7: Unitary method · Set 405 · 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. 1.10 painters can paint a school in 9 days. How many days would 18 painters take, working at the same speed?
2. 2.A car goes 45 km on 3 litres of petrol. How far can it go on 16 litres (in km)?
3. 3.A car goes 57 km on 3 litres of petrol. How far can it go on 22 litres (in km)?
4. 4.If 12 bottles of juice cost ₹420, how much do 9 bottles of juice cost (in ₹)?
5. 5.If 10 erasers cost ₹430, how much do 7 erasers cost (in ₹)?
6. 6.11 painters can paint a school in 23 days. How many days would 23 painters take, working at the same speed?
7. 7.12 painters can paint a school in 4 days. How many days would 24 painters take, working at the same speed?
8. 8.A car goes 30 km on 3 litres of petrol. How far can it go on 8 litres (in km)?
9. 9.A car goes 88 km on 4 litres of petrol. How far can it go on 11 litres (in km)?
10. 10.A car goes 144 km on 6 litres of petrol. How far can it go on 12 litres (in km)?
11. 11.If 11 pens cost ₹143, how much do 9 pens cost (in ₹)?
12. 12.10 painters can paint a school in 17 days. How many days would 5 painters take, working at the same speed?
13. 13.6 painters can paint a school in 16 days. How many days would 2 painters take, working at the same speed?
14. 14.A car goes 165 km on 11 litres of petrol. How far can it go on 38 litres (in km)?
15. 15.A car goes 171 km on 9 litres of petrol. How far can it go on 13 litres (in km)?
16. 16.12 painters can paint a school in 21 days. How many days would 6 painters take, working at the same speed?
17. 17.A car goes 143 km on 11 litres of petrol. How far can it go on 27 litres (in km)?
18. 18.If 4 kg of rice costs ₹224, how many kg can you buy for ₹728?
19. 19.If 11 bottles of juice cost ₹66, how much do 12 bottles of juice cost (in ₹)?
20. 20.2 painters can paint a school in 23 days. How many days would 23 painters take, working at the same speed?
21. 21.If 12 notebooks cost ₹348, how much do 16 notebooks cost (in ₹)?
22. 22.A car goes 240 km on 10 litres of petrol. How far can it go on 31 litres (in km)?
23. 23.If 3 notebooks cost ₹120, how much do 4 notebooks cost (in ₹)?
24. 24.If 2 kg of rice costs ₹42, how many kg can you buy for ₹84?
25. 25.If 3 kg of rice costs ₹159, how many kg can you buy for ₹583?
26. 26.A hostel has enough food for 12 students for 11 days. How many days will the same food last for 4 students?
27. 27.If 2 cricket balls cost ₹68, how much do 4 cricket balls cost (in ₹)?
28. 28.8 painters can paint a school in 22 days. How many days would 4 painters take, working at the same speed?
29. 29.A hostel has enough food for 7 students for 23 days. How many days will the same food last for 23 students?
30. 30.3 painters can paint a school in 24 days. How many days would 12 painters take, working at the same speed?
31. 31.11 painters can paint a school in 6 days. How many days would 2 painters take, working at the same speed?
32. 32.If 2 mangoes cost ₹38, how much do 4 mangoes cost (in ₹)?
33. 33.If 8 kg of rice costs ₹184, how many kg can you buy for ₹276?
34. 34.A car goes 70 km on 7 litres of petrol. How far can it go on 32 litres (in km)?
35. 35.If 5 kg of rice costs ₹200, how many kg can you buy for ₹560?
36. 36.If 6 notebooks cost ₹84, how much do 3 notebooks cost (in ₹)?
37. 37.A car goes 65 km on 5 litres of petrol. How far can it go on 11 litres (in km)?
38. 38.A car goes 117 km on 9 litres of petrol. How far can it go on 15 litres (in km)?
39. 39.If 8 pens cost ₹376, how much do 16 pens cost (in ₹)?
40. 40.If 3 kg of rice costs ₹87, how many kg can you buy for ₹348?

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