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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 808 · 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. 1.120% of a number is 6. What is the number?
  2. 2.What is the smallest number you must take away from 226 so that it divides exactly by 13?
  3. 3.What is the smallest number you must add to 161 so that it divides exactly by 3?
  4. 4.What is the smallest number you must add to 288 so that it divides exactly by 7?
  5. 5.What is 60% of 540?
  6. 6.3/4 + 3/8 =
  7. 7.The HCF of two numbers is 8 and their LCM is 168. One of the numbers is 24. What is the other number?
  8. 8.What is the smallest number you must take away from 746 so that it divides exactly by 4?
  9. 9.4.7 × 3 =
  10. 10.4.36 + 2.4 =
  11. 11.If 8 kg of rice costs ₹512, how many kg can you buy for ₹192?
  12. 12.Find the HCF of 6 and 10.
  13. 13.If 9 mangoes cost ₹234, how much do 17 mangoes cost (in ₹)?
  14. 14.Which is closest to 299 × 70? (Round each number first.) (a) 42000 (b) 2100 (c) 21000 (d) 210000
  15. 15.11 : 14 = 44 : ?
  16. 16.Two tanks hold 40 litres and 45 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  17. 17.Find the LCM of 2, 7 and 6.
  18. 18.Rahul scored 12 marks out of 25 in a test. What percentage did Rahul score?
  19. 19.How many factors does 59 have?
  20. 20.Find the third proportional to 8 and 40 (that is, 8 : 40 = 40 : ?).
  21. 21.(13 + 17) × 7 − 25 =
  22. 22.Three temple bells ring every 5, 24 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  23. 23.Round 55.78 to one decimal place. =
  24. 24.16 ÷ 4 × 2 + 1 =
  25. 25.21 + 3 × 2 − 21 =
  26. 26.Round 48.93 to one decimal place. =
  27. 27.1/6 × 7/12 =
  28. 28.14 ÷ 7 × 7 + 22 =
  29. 29.Find the smallest number bigger than 5 that leaves a remainder of 1 when divided by 4, 3 or 5.
  30. 30.Divide ₹406 between Vivaan and Sneha in the ratio 9 : 5. How much does Vivaan get (in ₹)?
  31. 31.1.93 + 9.5 =
  32. 32.11 painters can paint a school in 14 days. How many days would 14 painters take, working at the same speed?
  33. 33.Which is closest to 4503 ÷ 51? (a) 45 (b) 90 (c) 180 (d) 900
  34. 34.8/9 − 9/11 =
  35. 35.Find the HCF of 35 and 63.
  36. 36.Write 1/2 as a percent.
  37. 37.14.4 ÷ 6 =
  38. 38.Find the smallest number bigger than 8 that leaves a remainder of 2 when divided by 8, 3 or 5.
  39. 39.Divide ₹144 between Isha and Dev in the ratio 5 : 4. How much does Isha get (in ₹)?
  40. 40.30.5 ÷ 5 =

Answer key

  1. 5
  2. 5
  3. 1
  4. 6
  5. 324
  6. 9/8
  7. 56
  8. 2
  9. 14.1
  10. 6.76
  11. 3
  12. 2
  13. 442
  14. 21000
  15. 56
  16. 5
  17. 42
  18. 48
  19. 2
  20. 200
  21. 185
  22. 120
  23. 55.8
  24. 9
  25. 6
  26. 48.9
  27. 7/72
  28. 36
  29. 61
  30. 261
  31. 11.43
  32. 11
  33. 90
  34. 7/99
  35. 7
  36. 50
  37. 2.4
  38. 122
  39. 80
  40. 6.1

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