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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 233 · 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. 1.5.51 + 1.7 =
  2. 2.If 9 kg of rice costs ₹774, how many kg can you buy for ₹430?
  3. 3.A hostel has enough food for 5 students for 14 days. How many days will the same food last for 10 students?
  4. 4.10 : 14 = 30 : ?
  5. 5.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 3, 9 or 15.
  6. 6.What is the smallest number you must add to 198 so that it divides exactly by 8?
  7. 7.Which is closest to 802 × 88? (Round each number first.) (a) 7200 (b) 72000 (c) 720000 (d) 144000
  8. 8.Which is closest to 498 × 28? (Round each number first.) (a) 1500 (b) 30000 (c) 150000 (d) 15000
  9. 9.Find the LCM of 15 and 40.
  10. 10.Find the LCM of 3, 9 and 11.
  11. 11.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 3, 10 or 15.
  12. 12.Find the LCM of 3, 2 and 9.
  13. 13.A car goes 228 km on 12 litres of petrol. How far can it go on 16 litres (in km)?
  14. 14.Two tanks hold 60 litres and 270 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  15. 15.Tara takes 30 seconds and Kabir takes 48 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?
  16. 16.Which is closest to 203 × 91? (Round each number first.) (a) 18000 (b) 36000 (c) 180000 (d) 1800
  17. 17.Three temple bells ring every 24, 8 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  18. 18.A hall floor is 125 cm long and 75 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  19. 19.How many factors does 17 have?
  20. 20.Ananya scored 1 marks out of 20 in a test. What percentage did Ananya score?
  21. 21.What percent of 50 is 13?
  22. 22.Find the HCF of 135 and 60.
  23. 23.(11 + 16) × 7 − 4 =
  24. 24.Write 3/5 as a percent.
  25. 25.4/7 − 1/2 =
  26. 26.Round 71882 to the nearest ten.
  27. 27.2/3 − 2/12 =
  28. 28.Which is closest to 796 + 297 + 698? (a) 1700 (b) 1800 (c) 1900 (d) 2000
  29. 29.A hall floor is 300 cm long and 180 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  30. 30.Find the LCM of 8, 7 and 3.
  31. 31.Pooja scored 8 marks out of 50 in a test. What percentage did Pooja score?
  32. 32.Find the HCF of 40 and 90.
  33. 33.Which is closest to 695 + 795 + 295? (a) 1900 (b) 2000 (c) 1800 (d) 1700
  34. 34.The ratio of boys to girls in a class is 3 : 2. There are 9 boys. How many girls are there?
  35. 35.Find the LCM of 36 and 16.
  36. 36.Which is closest to 296 × 70? (Round each number first.) (a) 210000 (b) 42000 (c) 2100 (d) 21000
  37. 37.1/4 × 3/12 =
  38. 38.What is 150% of 244?
  39. 39.2/8 + 3/12 =
  40. 40.6 : 9 = 24 : ?

Answer key

  1. 7.21
  2. 5
  3. 7
  4. 42
  5. 46
  6. 2
  7. 72000
  8. 15000
  9. 120
  10. 99
  11. 31
  12. 18
  13. 304
  14. 30
  15. 240
  16. 18000
  17. 72
  18. 15
  19. 2
  20. 5
  21. 26
  22. 15
  23. 185
  24. 60
  25. 1/14
  26. 71880
  27. 1/2
  28. 1800
  29. 15
  30. 168
  31. 16
  32. 10
  33. 1800
  34. 6
  35. 144
  36. 21000
  37. 1/16
  38. 366
  39. 1/2
  40. 36

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