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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 76 · 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. 1.1/2 × 4/5 =
  2. 2.Three temple bells ring every 6, 20 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  3. 3.Which of these numbers divides exactly by 11? (a) 4098 (b) 7986 (c) 5443 (d) 1417
  4. 4.5 × (28 − 11) + 10 ÷ 2 =
  5. 5.Find the LCM of 14, 5 and 10.
  6. 6.Which is closest to 3999 ÷ 51? (a) 160 (b) 800 (c) 80 (d) 40
  7. 7.6 : 3 = 24 : ?
  8. 8.If 8 kg of rice costs ₹664, how many kg can you buy for ₹166?
  9. 9.Which is closest to 394 ÷ 21? (a) 40 (b) 10 (c) 20 (d) 200
  10. 10.Round 84202 to the nearest hundred.
  11. 11.Find the third proportional to 2 and 4 (that is, 2 : 4 = 4 : ?).
  12. 12.Meera scored 9 marks out of 25 in a test. What percentage did Meera score?
  13. 13.What is the smallest number you must add to 493 so that it divides exactly by 11?
  14. 14.What is the smallest number you must take away from 183 so that it divides exactly by 13?
  15. 15.Find the HCF of 50 and 90.
  16. 16.8 : 15 = 48 : ?
  17. 17.12 painters can paint a school in 15 days. How many days would 9 painters take, working at the same speed?
  18. 18.Divide ₹45 between Diya and Pooja in the ratio 2 : 1. How much does Diya get (in ₹)?
  19. 19.(14 + 10) × 3 − 21 =
  20. 20.(8 + 20) × 9 − 10 =
  21. 21.36 ÷ 3 × 9 + 4 =
  22. 22.A car goes 242 km on 11 litres of petrol. How far can it go on 15 litres (in km)?
  23. 23.Find the third proportional to 6 and 12 (that is, 6 : 12 = 12 : ?).
  24. 24.What percent of 500 is 150?
  25. 25.Find the LCM of 42 and 18.
  26. 26.If 3 kg of rice costs ₹105, how many kg can you buy for ₹315?
  27. 27.3/7 × 9/11 =
  28. 28.Which is closest to 800 + 205 + 296? (a) 1300 (b) 1200 (c) 1500 (d) 1400
  29. 29.How many factors does 48 have?
  30. 30.If 6 cricket balls cost ₹270, how much do 4 cricket balls cost (in ₹)?
  31. 31.What is 15% of 540?
  32. 32.How many factors does 20 have?
  33. 33.Which of these numbers divides exactly by 9? (a) 8978 (b) 5788 (c) 4608 (d) 9286
  34. 34.Which of these numbers divides exactly by 6? (a) 5703 (b) 9443 (c) 3247 (d) 5856
  35. 35.Find the third proportional to 3 and 15 (that is, 3 : 15 = 15 : ?).
  36. 36.The HCF of two numbers is 6 and their LCM is 210. One of the numbers is 42. What is the other number?
  37. 37.Which is closest to 898 × 29? (Round each number first.) (a) 270000 (b) 2700 (c) 54000 (d) 27000
  38. 38.Find the third proportional to 9 and 27 (that is, 9 : 27 = 27 : ?).
  39. 39.Ananya scored 5 marks out of 20 in a test. What percentage did Ananya score?
  40. 40.What is 3/5 of 20 kg?

Answer key

  1. 2/5
  2. 60
  3. 7986
  4. 90
  5. 70
  6. 80
  7. 12
  8. 2
  9. 20
  10. 84200
  11. 8
  12. 36
  13. 2
  14. 1
  15. 10
  16. 90
  17. 20
  18. 30
  19. 51
  20. 242
  21. 112
  22. 330
  23. 24
  24. 30
  25. 126
  26. 9
  27. 27/77
  28. 1300
  29. 10
  30. 180
  31. 81
  32. 6
  33. 4608
  34. 5856
  35. 75
  36. 30
  37. 27000
  38. 81
  39. 25
  40. 12

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