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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 203 · 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.Find the LCM of 11, 5 and 3.
  2. 2.If 9 bottles of juice cost ₹90, how much do 5 bottles of juice cost (in ₹)?
  3. 3.Find the third proportional to 8 and 32 (that is, 8 : 32 = 32 : ?).
  4. 4.Two tanks hold 20 litres and 25 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  5. 5.2/3 of 27 + 4 × 3 =
  6. 6.Which is closest to 497 + 196 + 298? (a) 1200 (b) 1100 (c) 900 (d) 1000
  7. 7.If 9 kg of rice costs ₹549, how many kg can you buy for ₹732?
  8. 8.7 × (13 − 4) + 10 ÷ 5 =
  9. 9.What percent of 50 is 20?
  10. 10.9.69 + 8.6 =
  11. 11.Round 13.11 to one decimal place. =
  12. 12.Find the LCM of 8 and 5.
  13. 13.Which is closest to 1196 ÷ 41? (a) 300 (b) 30 (c) 15 (d) 60
  14. 14.Round 70.43 to one decimal place. =
  15. 15.1/4 × 4/7 =
  16. 16.What is the smallest number you must add to 172 so that it divides exactly by 9?
  17. 17.If 8 kg of rice costs ₹224, how many kg can you buy for ₹392?
  18. 18.Which is closest to 696 × 80? (Round each number first.) (a) 560000 (b) 112000 (c) 5600 (d) 56000
  19. 19.12 : 10 = 72 : ?
  20. 20.Which of these numbers divides exactly by 4? (a) 4336 (b) 7641 (c) 8611 (d) 1623
  21. 21.Three temple bells ring every 30, 18 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  22. 22.Meera scored 23 marks out of 25 in a test. What percentage did Meera score?
  23. 23.Find the HCF of 18 and 21.
  24. 24.Divide ₹39 between Manav and Aarav in the ratio 1 : 2. How much does Manav get (in ₹)?
  25. 25.1/7 of 49 + 4 × 7 =
  26. 26.5.7 ÷ 3 =
  27. 27.What is the smallest number you must add to 641 so that it divides exactly by 11?
  28. 28.How many factors does 88 have?
  29. 29.Round 40.22 to one decimal place. =
  30. 30.If 3 erasers cost ₹51, how much do 15 erasers cost (in ₹)?
  31. 31.Round 36.19 to one decimal place. =
  32. 32.1.1 × 8 =
  33. 33.1/3 − 1/4 =
  34. 34.Ishaan scored 9 marks out of 20 in a test. What percentage did Ishaan score?
  35. 35.Divide ₹754 between Ananya and Isha in the ratio 5 : 8. How much does Ananya get (in ₹)?
  36. 36.Isha scored 12 marks out of 80 in a test. What percentage did Isha score?
  37. 37.Three temple bells ring every 30, 15 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  38. 38.A hostel has enough food for 8 students for 10 days. How many days will the same food last for 5 students?
  39. 39.(16 + 6) × 4 − 14 =
  40. 40.What is 80% of 385?

Answer key

  1. 165
  2. 50
  3. 128
  4. 5
  5. 30
  6. 1000
  7. 12
  8. 65
  9. 40
  10. 18.29
  11. 13.1
  12. 40
  13. 30
  14. 70.4
  15. 1/7
  16. 8
  17. 14
  18. 56000
  19. 60
  20. 4336
  21. 90
  22. 92
  23. 3
  24. 13
  25. 35
  26. 1.9
  27. 8
  28. 8
  29. 40.2
  30. 255
  31. 36.2
  32. 8.8
  33. 1/12
  34. 45
  35. 290
  36. 15
  37. 120
  38. 16
  39. 74
  40. 308

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