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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 979 · 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.Write 3/10 as a percent.
  2. 2.9 × (12 − 8) + 8 ÷ 4 =
  3. 3.Find the LCM of 35 and 15.
  4. 4.1/2 × 2/6 =
  5. 5.Find the LCM of 15, 5 and 14.
  6. 6.8 : 14 = 48 : ?
  7. 7.96 ÷ 8 × 8 + 23 =
  8. 8.What is the smallest number you must add to 457 so that it divides exactly by 3?
  9. 9.What is 5/6 of 12 students?
  10. 10.2.05 + 1.1 =
  11. 11.If 2 erasers cost ₹64, how much do 9 erasers cost (in ₹)?
  12. 12.8 × (14 − 2) + 15 ÷ 3 =
  13. 13.Find the HCF of 75 and 30.
  14. 14.How many factors does 79 have?
  15. 15.19.2 ÷ 4 =
  16. 16.What percent of 25 is 4?
  17. 17.Write 11/20 as a percent.
  18. 18.12 : 8 = 24 : ?
  19. 19.What is the smallest number you must add to 169 so that it divides exactly by 12?
  20. 20.Find the HCF of 30 and 75.
  21. 21.Which of these numbers divides exactly by 9? (a) 5589 (b) 5414 (c) 7517 (d) 5834
  22. 22.Which is closest to 609 ÷ 21? (a) 300 (b) 30 (c) 60 (d) 15
  23. 23.Priya takes 40 seconds and Kabir 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?
  24. 24.Find the LCM of 14, 7 and 6.
  25. 25.10 painters can paint a school in 29 days. How many days would 5 painters take, working at the same speed?
  26. 26.8 × (17 − 5) + 64 ÷ 8 =
  27. 27.Three temple bells ring every 8, 12 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  28. 28.What percent of 250 is 10?
  29. 29.What is 1/3 of ₹48?
  30. 30.9.07 + 9.2 =
  31. 31.A car goes 44 km on 4 litres of petrol. How far can it go on 37 litres (in km)?
  32. 32.What is 1/3 of ₹51?
  33. 33.What is 150% of 72?
  34. 34.Round 92027 to the nearest thousand.
  35. 35.Find the third proportional to 3 and 6 (that is, 3 : 6 = 6 : ?).
  36. 36.3/5 + 2/4 =
  37. 37.Write 1/2 as a percent.
  38. 38.Two tanks hold 50 litres and 20 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  39. 39.Divide ₹56 between Farhan and Aarav in the ratio 5 : 2. How much does Aarav get (in ₹)?
  40. 40.Three temple bells ring every 10, 6 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?

Answer key

  1. 30
  2. 38
  3. 105
  4. 1/6
  5. 210
  6. 84
  7. 119
  8. 2
  9. 10
  10. 3.15
  11. 288
  12. 101
  13. 15
  14. 2
  15. 4.8
  16. 16
  17. 55
  18. 16
  19. 11
  20. 15
  21. 5589
  22. 30
  23. 360
  24. 42
  25. 58
  26. 104
  27. 120
  28. 4
  29. 16
  30. 18.27
  31. 407
  32. 17
  33. 108
  34. 92000
  35. 12
  36. 11/10
  37. 50
  38. 10
  39. 16
  40. 30

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