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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 70 · 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 7 kg of rice costs ₹343, how many kg can you buy for ₹98?
  2. 2.4 : 15 = 36 : ?
  3. 3.The HCF of two numbers is 6 and their LCM is 378. One of the numbers is 54. What is the other number?
  4. 4.Which of these numbers divides exactly by 9? (a) 5364 (b) 4516 (c) 1029 (d) 2197
  5. 5.5/6 − 7/9 =
  6. 6.Round 77.73 to one decimal place. =
  7. 7.8.8 ÷ 4 =
  8. 8.11 + 4 × 2 − 10 =
  9. 9.Find the LCM of 5 and 7.
  10. 10.2 × (22 − 9) + 77 ÷ 7 =
  11. 11.Two tanks hold 200 litres and 320 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  12. 12.Find the LCM of 11, 15 and 3.
  13. 13.7 : 9 = 28 : ?
  14. 14.If 7 cricket balls cost ₹182, how much do 10 cricket balls cost (in ₹)?
  15. 15.If 4 kites cost ₹112, how much do 16 kites cost (in ₹)?
  16. 16.If 6 kg of rice costs ₹198, how many kg can you buy for ₹264?
  17. 17.A car goes 231 km on 11 litres of petrol. How far can it go on 7 litres (in km)?
  18. 18.Which is closest to 201 × 62? (Round each number first.) (a) 24000 (b) 120000 (c) 12000 (d) 1200
  19. 19.What is 2/3 of 54 kg?
  20. 20.1/4 of 16 + 8 × 6 =
  21. 21.Three temple bells ring every 15, 8 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  22. 22.What is 5% of 520?
  23. 23.Zoya takes 30 seconds and Ishaan takes 75 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?
  24. 24.8 painters can paint a school in 5 days. How many days would 20 painters take, working at the same speed?
  25. 25.A car goes 144 km on 8 litres of petrol. How far can it go on 39 litres (in km)?
  26. 26.Ananya scored 13 marks out of 20 in a test. What percentage did Ananya score?
  27. 27.Divide ₹35 between Nisha and Kavya in the ratio 4 : 3. How much does Kavya get (in ₹)?
  28. 28.Find the HCF of 40 and 30.
  29. 29.Round 24.29 to one decimal place. =
  30. 30.If 5 kg of rice costs ₹110, how many kg can you buy for ₹198?
  31. 31.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?
  32. 32.Which is closest to 1599 ÷ 39? (a) 400 (b) 80 (c) 40 (d) 20
  33. 33.What is the smallest number you must add to 759 so that it divides exactly by 9?
  34. 34.A car goes 24 km on 2 litres of petrol. How far can it go on 28 litres (in km)?
  35. 35.What is the smallest number you must add to 159 so that it divides exactly by 4?
  36. 36.How many factors does 95 have?
  37. 37.The HCF of two numbers is 7 and their LCM is 315. One of the numbers is 63. What is the other number?
  38. 38.18 − 18 ÷ 9 × 8 =
  39. 39.Which is closest to 703 + 904 + 99? (a) 1600 (b) 1900 (c) 1700 (d) 1800
  40. 40.7.22 + 4.6 =

Answer key

  1. 2
  2. 135
  3. 42
  4. 5364
  5. 1/18
  6. 77.7
  7. 2.2
  8. 9
  9. 35
  10. 37
  11. 40
  12. 165
  13. 36
  14. 260
  15. 448
  16. 8
  17. 147
  18. 12000
  19. 36
  20. 52
  21. 120
  22. 26
  23. 150
  24. 2
  25. 702
  26. 65
  27. 15
  28. 10
  29. 24.3
  30. 9
  31. 36
  32. 40
  33. 6
  34. 336
  35. 1
  36. 4
  37. 35
  38. 2
  39. 1700
  40. 11.82

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