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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 703 · 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.Find the smallest number bigger than 15 that leaves a remainder of 6 when divided by 8, 15 or 10.
  2. 2.7/8 − 2/11 =
  3. 3.10 + 7 × 9 − 2 =
  4. 4.What percent of 25 is 22?
  5. 5.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 6, 8 or 10.
  6. 6.A hall floor is 315 cm long and 180 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  7. 7.Which is closest to 397 × 61? (Round each number first.) (a) 48000 (b) 240000 (c) 2400 (d) 24000
  8. 8.5/7 + 1/10 =
  9. 9.Three temple bells ring every 24, 6 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  10. 10.Find the HCF of 108 and 60.
  11. 11.Sneha takes 72 seconds and Isha 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?
  12. 12.Find the LCM of 8, 4 and 2.
  13. 13.7.25 + 4.6 =
  14. 14.A hall floor is 350 cm long and 200 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  15. 15.Tara takes 72 seconds and Manav 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. 16.3.1 × 6 =
  17. 17.Which is closest to 1195 ÷ 31? (a) 20 (b) 80 (c) 400 (d) 40
  18. 18.Which of these numbers divides exactly by 4? (a) 2986 (b) 2622 (c) 4155 (d) 9952
  19. 19.The ratio of boys to girls in a class is 3 : 4. There are 12 boys. How many girls are there?
  20. 20.If 11 kites cost ₹627, how much do 2 kites cost (in ₹)?
  21. 21.A car goes 91 km on 7 litres of petrol. How far can it go on 33 litres (in km)?
  22. 22.1/5 of 45 + 8 × 6 =
  23. 23.What percent of 40 is 32?
  24. 24.11 painters can paint a school in 27 days. How many days would 9 painters take, working at the same speed?
  25. 25.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 10, 5 or 3.
  26. 26.8.9 × 2 =
  27. 27.Find the LCM of 8 and 20.
  28. 28.Find the LCM of 14 and 6.
  29. 29.What percent of 500 is 295?
  30. 30.59.4 ÷ 9 =
  31. 31.What is 5% of 400?
  32. 32.Divide ₹160 between Diya and Priya in the ratio 7 : 1. How much does Priya get (in ₹)?
  33. 33.7 : 15 = 42 : ?
  34. 34.If 7 kg of rice costs ₹182, how many kg can you buy for ₹364?
  35. 35.A car goes 264 km on 11 litres of petrol. How far can it go on 14 litres (in km)?
  36. 36.10 ÷ 5 × 6 + 26 =
  37. 37.4.08 + 5.7 =
  38. 38.5 : 3 = 30 : ?
  39. 39.Which is closest to 498 × 40? (Round each number first.) (a) 40000 (b) 200000 (c) 2000 (d) 20000
  40. 40.The ratio of boys to girls in a class is 8 : 1. There are 48 boys. How many girls are there?

Answer key

  1. 126
  2. 61/88
  3. 71
  4. 88
  5. 121
  6. 28
  7. 24000
  8. 57/70
  9. 120
  10. 12
  11. 360
  12. 8
  13. 11.85
  14. 28
  15. 144
  16. 18.6
  17. 40
  18. 9952
  19. 16
  20. 114
  21. 429
  22. 57
  23. 80
  24. 33
  25. 31
  26. 17.8
  27. 40
  28. 42
  29. 59
  30. 6.6
  31. 20
  32. 20
  33. 90
  34. 14
  35. 336
  36. 38
  37. 9.78
  38. 18
  39. 20000
  40. 6

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