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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 383 · 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.How many factors does 50 have?
  2. 2.Three temple bells ring every 10, 24 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  3. 3.24 ÷ 6 × 4 + 19 =
  4. 4.Divide ₹816 between Rahul and Pooja in the ratio 7 : 9. How much does Pooja get (in ₹)?
  5. 5.How many factors does 80 have?
  6. 6.What is 15% of 220?
  7. 7.Meera scored 16 marks out of 40 in a test. What percentage did Meera score?
  8. 8.What is 20% of 45?
  9. 9.What is the smallest number you must take away from 104 so that it divides exactly by 12?
  10. 10.Divide ₹340 between Tara and Arjun in the ratio 1 : 9. How much does Arjun get (in ₹)?
  11. 11.Round 81.58 to one decimal place. =
  12. 12.Which is closest to 496 × 39? (Round each number first.) (a) 20000 (b) 200000 (c) 2000 (d) 40000
  13. 13.(19 + 19) × 3 − 27 =
  14. 14.What is 25% of 576?
  15. 15.1/4 of 44 + 7 × 3 =
  16. 16.7/9 − 2/11 =
  17. 17.9 : 11 = 81 : ?
  18. 18.(8 + 6) × 6 − 29 =
  19. 19.Which is closest to 295 + 103 + 698? (a) 1000 (b) 1300 (c) 1100 (d) 1200
  20. 20.Find the third proportional to 6 and 12 (that is, 6 : 12 = 12 : ?).
  21. 21.6 painters can paint a school in 6 days. How many days would 12 painters take, working at the same speed?
  22. 22.If 6 cricket balls cost ₹72, how much do 13 cricket balls cost (in ₹)?
  23. 23.What is 75% of 196?
  24. 24.If 4 erasers cost ₹48, how much do 13 erasers cost (in ₹)?
  25. 25.Which is closest to 896 × 41? (Round each number first.) (a) 360000 (b) 72000 (c) 3600 (d) 36000
  26. 26.A car goes 117 km on 9 litres of petrol. How far can it go on 10 litres (in km)?
  27. 27.What is the smallest number you must add to 805 so that it divides exactly by 8?
  28. 28.4 × (30 − 26) + 4 ÷ 2 =
  29. 29.If 8 kg of rice costs ₹168, how many kg can you buy for ₹84?
  30. 30.The ratio of boys to girls in a class is 7 : 6. There are 14 boys. How many girls are there?
  31. 31.Find the LCM of 18 and 4.
  32. 32.Find the LCM of 4, 12 and 8.
  33. 33.Which of these numbers divides exactly by 11? (a) 3195 (b) 2886 (c) 2769 (d) 7854
  34. 34.Two tanks hold 20 litres and 50 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  35. 35.A car goes 18 km on 2 litres of petrol. How far can it go on 39 litres (in km)?
  36. 36.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 10, 15 or 5.
  37. 37.What is 12% of 600?
  38. 38.2/7 of 77 + 6 × 2 =
  39. 39.62 − 28 ÷ 7 × 8 =
  40. 40.7 × (13 − 3) + 24 ÷ 2 =

Answer key

  1. 6
  2. 120
  3. 35
  4. 459
  5. 10
  6. 33
  7. 40
  8. 9
  9. 8
  10. 306
  11. 81.6
  12. 20000
  13. 87
  14. 144
  15. 32
  16. 59/99
  17. 99
  18. 55
  19. 1100
  20. 24
  21. 3
  22. 156
  23. 147
  24. 156
  25. 36000
  26. 130
  27. 3
  28. 18
  29. 4
  30. 12
  31. 36
  32. 24
  33. 7854
  34. 10
  35. 351
  36. 31
  37. 72
  38. 34
  39. 30
  40. 82

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