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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 301 · 40 questions
TalentJR

The method (Spot the type): Read the question and name the topic: HCF/LCM, fraction, ratio, percent … Use that lesson’s method and write each step. Check: is the answer sensible in size and units?

NameDateTime takenScore ___ / 40
  1. 1.Write 4/25 as a percent.
  2. 2.If 7 kg of rice costs ₹518, how many kg can you buy for ₹148?
  3. 3.12% of a number is 6. What is the number?
  4. 4.Three temple bells ring every 9, 5 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  5. 5.A car goes 75 km on 3 litres of petrol. How far can it go on 25 litres (in km)?
  6. 6.A hostel has enough food for 12 students for 6 days. How many days will the same food last for 24 students?
  7. 7.What percent of 400 is 296?
  8. 8.Two tanks hold 20 litres and 30 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  9. 9.5 × (21 − 6) + 72 ÷ 6 =
  10. 10.77 ÷ 7 × 5 + 19 =
  11. 11.Divide ₹520 between Rohan and Diya in the ratio 9 : 1. How much does Rohan get (in ₹)?
  12. 12.Which is closest to 798 × 52? (Round each number first.) (a) 40000 (b) 400000 (c) 80000 (d) 4000
  13. 13.Which is closest to 502 × 58? (Round each number first.) (a) 300000 (b) 30000 (c) 3000 (d) 60000
  14. 14.Find the HCF of 99 and 88.
  15. 15.Find the HCF of 81 and 36.
  16. 16.9/11 + 1/3 =
  17. 17.Find the third proportional to 8 and 24 (that is, 8 : 24 = 24 : ?).
  18. 18.36 − 8 ÷ 2 × 4 =
  19. 19.How many factors does 47 have?
  20. 20.8 painters can paint a school in 14 days. How many days would 2 painters take, working at the same speed?
  21. 21.Find the HCF of 4 and 10.
  22. 22.What is the smallest number you must take away from 528 so that it divides exactly by 13?
  23. 23.Which is closest to 95 + 898 + 395? (a) 1600 (b) 1300 (c) 1400 (d) 1500
  24. 24.(20 + 13) × 7 − 16 =
  25. 25.Rahul scored 12 marks out of 20 in a test. What percentage did Rahul score?
  26. 26.Round 92.91 to one decimal place. =
  27. 27.Two tanks hold 90 litres and 40 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  28. 28.Rahul takes 45 seconds and Karan takes 54 seconds to run once round a track. They start together from the start line. After how many seconds will they first be at the start line together again?
  29. 29.10.8 ÷ 6 =
  30. 30.Which is closest to 799 × 78? (Round each number first.) (a) 128000 (b) 640000 (c) 64000 (d) 6400
  31. 31.11/12 × 1/3 =
  32. 32.What is the smallest number you must add to 255 so that it divides exactly by 4?
  33. 33.5/12 × 2/6 =
  34. 34.How many factors does 96 have?
  35. 35.Which of these numbers divides exactly by 4? (a) 1763 (b) 3535 (c) 2213 (d) 1568
  36. 36.What is the smallest number you must take away from 178 so that it divides exactly by 9?
  37. 37.What is 2/3 of 30 kg?
  38. 38.42 + 3 × 3 − 41 =
  39. 39.Meera scored 3 marks out of 25 in a test. What percentage did Meera score?
  40. 40.Write 1/5 as a percent.

Answer key

  1. 16
  2. 2
  3. 50
  4. 90
  5. 625
  6. 3
  7. 74
  8. 10
  9. 87
  10. 74
  11. 468
  12. 40000
  13. 30000
  14. 11
  15. 9
  16. 38/33
  17. 72
  18. 20
  19. 2
  20. 56
  21. 2
  22. 8
  23. 1400
  24. 215
  25. 60
  26. 92.9
  27. 10
  28. 270
  29. 1.8
  30. 64000
  31. 11/36
  32. 1
  33. 5/36
  34. 12
  35. 1568
  36. 7
  37. 20
  38. 10
  39. 12
  40. 20

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