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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 771 · 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.Divide ₹456 between Aarav and Dev in the ratio 5 : 3. How much does Dev get (in ₹)?
  2. 2.10% of a number is 44. What is the number?
  3. 3.8 ÷ 2 × 9 + 8 =
  4. 4.If 5 kg of rice costs ₹340, how many kg can you buy for ₹1020?
  5. 5.If 3 kg of rice costs ₹243, how many kg can you buy for ₹405?
  6. 6.25.8 ÷ 3 =
  7. 7.Which of these numbers divides exactly by 4? (a) 9378 (b) 1756 (c) 9578 (d) 4877
  8. 8.Find the HCF of 50 and 60.
  9. 9.10 : 11 = 20 : ?
  10. 10.What is 9/10 of 50 litres?
  11. 11.Which of these numbers divides exactly by 9? (a) 7758 (b) 6451 (c) 4204 (d) 1074
  12. 12.3/4 of 28 + 8 × 8 =
  13. 13.Diya takes 72 seconds and Rahul takes 45 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?
  14. 14.Three temple bells ring every 6, 10 and 24 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  15. 15.Which is closest to 500 × 61? (Round each number first.) (a) 30000 (b) 300000 (c) 3000 (d) 60000
  16. 16.Which of these numbers divides exactly by 6? (a) 2964 (b) 8834 (c) 9389 (d) 2121
  17. 17.Which of these numbers divides exactly by 9? (a) 4809 (b) 8271 (c) 3112 (d) 9871
  18. 18.Find the HCF of 112 and 70.
  19. 19.What is the smallest number you must take away from 349 so that it divides exactly by 12?
  20. 20.6 painters can paint a school in 15 days. How many days would 15 painters take, working at the same speed?
  21. 21.Find the third proportional to 7 and 28 (that is, 7 : 28 = 28 : ?).
  22. 22.Which of these numbers divides exactly by 3? (a) 6581 (b) 2312 (c) 5871 (d) 9868
  23. 23.1/2 + 1/7 =
  24. 24.Which is closest to 697 + 800 + 598? (a) 2200 (b) 2100 (c) 2000 (d) 2300
  25. 25.4/9 of 18 + 9 × 6 =
  26. 26.Divide ₹135 between Nisha and Saanvi in the ratio 2 : 7. How much does Saanvi get (in ₹)?
  27. 27.Dev scored 4 marks out of 40 in a test. What percentage did Dev score?
  28. 28.8.3 × 6 =
  29. 29.Find the third proportional to 9 and 45 (that is, 9 : 45 = 45 : ?).
  30. 30.Find the HCF of 18 and 24.
  31. 31.Find the smallest number bigger than 8 that leaves a remainder of 2 when divided by 4, 8 or 6.
  32. 32.What is 80% of 445?
  33. 33.Find the LCM of 24 and 30.
  34. 34.Find the LCM of 8, 4 and 10.
  35. 35.Three temple bells ring every 9, 6 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  36. 36.66 ÷ 6 × 3 + 18 =
  37. 37.How many factors does 81 have?
  38. 38.Two tanks hold 25 litres and 35 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  39. 39.What is the smallest number you must add to 476 so that it divides exactly by 8?
  40. 40.3/5 + 1/2 =

Answer key

  1. 171
  2. 440
  3. 44
  4. 15
  5. 5
  6. 8.6
  7. 1756
  8. 10
  9. 22
  10. 45
  11. 7758
  12. 85
  13. 360
  14. 120
  15. 30000
  16. 2964
  17. 8271
  18. 14
  19. 1
  20. 6
  21. 112
  22. 5871
  23. 9/14
  24. 2100
  25. 62
  26. 105
  27. 10
  28. 49.8
  29. 225
  30. 6
  31. 26
  32. 356
  33. 120
  34. 40
  35. 90
  36. 51
  37. 5
  38. 5
  39. 4
  40. 11/10

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