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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 597 · 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.If 9 kites cost ₹288, how much do 20 kites cost (in ₹)?
  2. 2.4 × (18 − 6) + 28 ÷ 4 =
  3. 3.8.2 × 3 =
  4. 4.Find the third proportional to 7 and 21 (that is, 7 : 21 = 21 : ?).
  5. 5.2 painters can paint a school in 9 days. How many days would 3 painters take, working at the same speed?
  6. 6.Kabir takes 50 seconds and Sneha takes 90 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?
  7. 7.(7 + 10) × 4 − 26 =
  8. 8.Which is closest to 1494 ÷ 29? (a) 100 (b) 500 (c) 50 (d) 25
  9. 9.A car goes 152 km on 8 litres of petrol. How far can it go on 23 litres (in km)?
  10. 10.What is the smallest number you must add to 536 so that it divides exactly by 11?
  11. 11.Round 83822 to the nearest ten.
  12. 12.Find the LCM of 25 and 20.
  13. 13.What is the smallest number you must take away from 863 so that it divides exactly by 8?
  14. 14.If 4 kg of rice costs ₹96, how many kg can you buy for ₹312?
  15. 15.4 ÷ 2 × 8 + 20 =
  16. 16.14 ÷ 7 × 6 + 10 =
  17. 17.Which is closest to 595 + 801 + 803? (a) 2100 (b) 2300 (c) 2200 (d) 2400
  18. 18.Which is closest to 95 + 797 + 797? (a) 1900 (b) 1700 (c) 1800 (d) 1600
  19. 19.25 ÷ 5 × 7 + 27 =
  20. 20.How many factors does 43 have?
  21. 21.If 11 erasers cost ₹88, how much do 4 erasers cost (in ₹)?
  22. 22.What is the smallest number you must take away from 596 so that it divides exactly by 7?
  23. 23.Which is closest to 497 × 59? (Round each number first.) (a) 30000 (b) 300000 (c) 60000 (d) 3000
  24. 24.4.2 × 6 =
  25. 25.3/8 + 1/2 =
  26. 26.1/5 − 1/8 =
  27. 27.What is 50% of 290?
  28. 28.Three temple bells ring every 6, 5 and 24 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  29. 29.44 − 8 ÷ 2 × 9 =
  30. 30.A car goes 75 km on 3 litres of petrol. How far can it go on 21 litres (in km)?
  31. 31.Which is closest to 303 + 604 + 196? (a) 1200 (b) 1300 (c) 1100 (d) 1000
  32. 32.4 × (18 − 7) + 20 ÷ 5 =
  33. 33.Ishaan takes 45 seconds and Isha 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?
  34. 34.(19 + 17) × 8 − 5 =
  35. 35.Round 67.81 to one decimal place. =
  36. 36.2/9 of 81 + 5 × 7 =
  37. 37.Find the LCM of 48 and 18.
  38. 38.What is 120% of 70?
  39. 39.9 ÷ 3 × 8 + 9 =
  40. 40.Which is closest to 2695 ÷ 29? (a) 900 (b) 90 (c) 45 (d) 180

Answer key

  1. 640
  2. 55
  3. 24.6
  4. 63
  5. 6
  6. 450
  7. 42
  8. 50
  9. 437
  10. 3
  11. 83820
  12. 100
  13. 7
  14. 13
  15. 36
  16. 22
  17. 2200
  18. 1700
  19. 62
  20. 2
  21. 32
  22. 1
  23. 30000
  24. 25.2
  25. 7/8
  26. 3/40
  27. 145
  28. 120
  29. 8
  30. 525
  31. 1100
  32. 48
  33. 720
  34. 283
  35. 67.8
  36. 53
  37. 144
  38. 84
  39. 33
  40. 90

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