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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 695 · 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.Which of these numbers divides exactly by 6? (a) 7119 (b) 2369 (c) 9030 (d) 7933
  2. 2.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 3, 10 or 4.
  3. 3.8 × (10 − 4) + 12 ÷ 2 =
  4. 4.58 − 12 ÷ 4 × 6 =
  5. 5.Aditya scored 20 marks out of 50 in a test. What percentage did Aditya score?
  6. 6.Divide ₹288 between Saanvi and Dev in the ratio 4 : 5. How much does Dev get (in ₹)?
  7. 7.If 12 mangoes cost ₹516, how much do 3 mangoes cost (in ₹)?
  8. 8.How many factors does 43 have?
  9. 9.150% of a number is 270. What is the number?
  10. 10.If 8 kg of rice costs ₹184, how many kg can you buy for ₹69?
  11. 11.Find the third proportional to 7 and 14 (that is, 7 : 14 = 14 : ?).
  12. 12.What percent of 80 is 60?
  13. 13.Which is closest to 801 ÷ 39? (a) 10 (b) 40 (c) 20 (d) 200
  14. 14.9.1 × 9 =
  15. 15.What is the smallest number you must take away from 953 so that it divides exactly by 7?
  16. 16.What is the smallest number you must take away from 364 so that it divides exactly by 9?
  17. 17.A hostel has enough food for 12 students for 18 days. How many days will the same food last for 4 students?
  18. 18.Find the third proportional to 4 and 20 (that is, 4 : 20 = 20 : ?).
  19. 19.Write 7/20 as a percent.
  20. 20.7.89 + 5.4 =
  21. 21.What percent of 40 is 36?
  22. 22.Three temple bells ring every 15, 10 and 18 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  23. 23.If 2 kg of rice costs ₹98, how many kg can you buy for ₹392?
  24. 24.Three temple bells ring every 8, 30 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  25. 25.What is the smallest number you must add to 382 so that it divides exactly by 11?
  26. 26.Divide ₹90 between Kabir and Ananya in the ratio 3 : 2. How much does Kabir get (in ₹)?
  27. 27.3.31 + 6.4 =
  28. 28.Find the third proportional to 3 and 15 (that is, 3 : 15 = 15 : ?).
  29. 29.If 9 kg of rice costs ₹801, how many kg can you buy for ₹356?
  30. 30.20.5 ÷ 5 =
  31. 31.What is 25% of 232?
  32. 32.1/4 + 2/6 =
  33. 33.If 9 cricket balls cost ₹369, how much do 10 cricket balls cost (in ₹)?
  34. 34.Which is closest to 301 × 42? (Round each number first.) (a) 24000 (b) 120000 (c) 12000 (d) 1200
  35. 35.Two tanks hold 120 litres and 100 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  36. 36.Aditya takes 48 seconds and Ishaan takes 40 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?
  37. 37.What is the smallest number you must add to 391 so that it divides exactly by 8?
  38. 38.What percent of 40 is 10?
  39. 39.3 × (14 − 10) + 54 ÷ 6 =
  40. 40.Which of these numbers divides exactly by 3? (a) 5839 (b) 9874 (c) 2100 (d) 3940

Answer key

  1. 9030
  2. 61
  3. 54
  4. 40
  5. 40
  6. 160
  7. 129
  8. 2
  9. 180
  10. 3
  11. 28
  12. 75
  13. 20
  14. 81.9
  15. 1
  16. 4
  17. 54
  18. 100
  19. 35
  20. 13.29
  21. 90
  22. 90
  23. 8
  24. 120
  25. 3
  26. 54
  27. 9.71
  28. 75
  29. 4
  30. 4.1
  31. 58
  32. 7/12
  33. 410
  34. 12000
  35. 20
  36. 240
  37. 1
  38. 25
  39. 21
  40. 2100

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