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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 385 · 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 kg of rice costs ₹288, how many kg can you buy for ₹192?
  2. 2.Find the HCF of 56 and 72.
  3. 3.Manav scored 9 marks out of 20 in a test. What percentage did Manav score?
  4. 4.What is the smallest number you must take away from 234 so that it divides exactly by 7?
  5. 5.18 ÷ 6 × 9 + 4 =
  6. 6.How many factors does 40 have?
  7. 7.Sneha takes 90 seconds and Ishaan takes 36 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?
  8. 8.How many factors does 68 have?
  9. 9.A car goes 136 km on 8 litres of petrol. How far can it go on 39 litres (in km)?
  10. 10.Three temple bells ring every 12, 9 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  11. 11.2 painters can paint a school in 9 days. How many days would 9 painters take, working at the same speed?
  12. 12.3/4 + 5/7 =
  13. 13.46 − 36 ÷ 9 × 2 =
  14. 14.28 − 18 ÷ 9 × 4 =
  15. 15.6/7 + 8/10 =
  16. 16.1/2 of 14 + 3 × 3 =
  17. 17.Find the HCF of 30 and 42.
  18. 18.(4 + 8) × 2 − 10 =
  19. 19.1.6 × 8 =
  20. 20.Divide ₹190 between Manav and Tara in the ratio 2 : 3. How much does Tara get (in ₹)?
  21. 21.How many factors does 53 have?
  22. 22.Write 13/50 as a percent.
  23. 23.6 : 9 = 42 : ?
  24. 24.Write 3/10 as a percent.
  25. 25.Find the HCF of 135 and 75.
  26. 26.(9 + 15) × 3 − 16 =
  27. 27.Kavya takes 54 seconds and Rohan takes 72 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?
  28. 28.How many factors does 50 have?
  29. 29.4 : 14 = 16 : ?
  30. 30.Divide ₹432 between Meera and Manav in the ratio 5 : 3. How much does Meera get (in ₹)?
  31. 31.Which is closest to 4491 ÷ 51? (a) 90 (b) 900 (c) 45 (d) 180
  32. 32.Round 10474 to the nearest hundred.
  33. 33.The HCF of two numbers is 3 and their LCM is 42. One of the numbers is 21. What is the other number?
  34. 34.12 painters can paint a school in 16 days. How many days would 8 painters take, working at the same speed?
  35. 35.What is the smallest number you must take away from 611 so that it divides exactly by 8?
  36. 36.What is 1/3 of ₹57?
  37. 37.6 × (14 − 1) + 20 ÷ 5 =
  38. 38.1/5 + 4/8 =
  39. 39.What is the smallest number you must take away from 153 so that it divides exactly by 7?
  40. 40.8.4 × 8 =

Answer key

  1. 6
  2. 8
  3. 45
  4. 3
  5. 31
  6. 8
  7. 180
  8. 6
  9. 663
  10. 36
  11. 2
  12. 41/28
  13. 38
  14. 20
  15. 58/35
  16. 16
  17. 6
  18. 14
  19. 12.8
  20. 114
  21. 2
  22. 26
  23. 63
  24. 30
  25. 15
  26. 56
  27. 216
  28. 6
  29. 56
  30. 270
  31. 90
  32. 10500
  33. 6
  34. 24
  35. 3
  36. 19
  37. 82
  38. 7/10
  39. 6
  40. 67.2

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