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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 676 · 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. 1.3 : 2 = 6 : ?
  2. 2.A hall floor is 350 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  3. 3.How many factors does 97 have?
  4. 4.The HCF of two numbers is 7 and their LCM is 70. One of the numbers is 35. What is the other number?
  5. 5.Which is closest to 301 × 58? (Round each number first.) (a) 36000 (b) 1800 (c) 18000 (d) 180000
  6. 6.What is the smallest number you must take away from 251 so that it divides exactly by 3?
  7. 7.What is the smallest number you must take away from 352 so that it divides exactly by 3?
  8. 8.What is the smallest number you must take away from 112 so that it divides exactly by 12?
  9. 9.3/4 of 24 + 5 × 4 =
  10. 10.7 painters can paint a school in 15 days. How many days would 3 painters take, working at the same speed?
  11. 11.Round 80990 to the nearest hundred.
  12. 12.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 15, 9 or 4.
  13. 13.Round 64.26 to one decimal place. =
  14. 14.If 3 kg of rice costs ₹186, how many kg can you buy for ₹558?
  15. 15.A hall floor is 315 cm long and 135 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  16. 16.How many factors does 83 have?
  17. 17.Find the HCF of 40 and 56.
  18. 18.Which is closest to 896 + 798 + 503? (a) 2100 (b) 2300 (c) 2200 (d) 2400
  19. 19.What percent of 500 is 440?
  20. 20.The HCF of two numbers is 5 and their LCM is 150. One of the numbers is 30. What is the other number?
  21. 21.9 : 11 = 63 : ?
  22. 22.How many factors does 30 have?
  23. 23.If 2 kg of rice costs ₹76, how many kg can you buy for ₹190?
  24. 24.Which is closest to 1192 ÷ 41? (a) 60 (b) 30 (c) 300 (d) 15
  25. 25.Find the HCF of 28 and 98.
  26. 26.40% of a number is 6. What is the number?
  27. 27.A car goes 264 km on 11 litres of petrol. How far can it go on 38 litres (in km)?
  28. 28.Find the smallest number bigger than 15 that leaves a remainder of 3 when divided by 9, 15 or 5.
  29. 29.3.9 × 7 =
  30. 30.A hostel has enough food for 11 students for 23 days. How many days will the same food last for 23 students?
  31. 31.Two tanks hold 135 litres and 315 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  32. 32.How many factors does 27 have?
  33. 33.Which of these numbers divides exactly by 6? (a) 8842 (b) 2532 (c) 5638 (d) 9587
  34. 34.A hostel has enough food for 4 students for 13 days. How many days will the same food last for 13 students?
  35. 35.Find the LCM of 10, 2 and 5.
  36. 36.Which of these numbers divides exactly by 9? (a) 5043 (b) 6344 (c) 3436 (d) 3105
  37. 37.A car goes 60 km on 3 litres of petrol. How far can it go on 36 litres (in km)?
  38. 38.Aarav scored 3 marks out of 20 in a test. What percentage did Aarav score?
  39. 39.Which of these numbers divides exactly by 6? (a) 1236 (b) 2507 (c) 3469 (d) 5258
  40. 40.Find the LCM of 12, 6 and 14.

Answer key

  1. 4
  2. 21
  3. 2
  4. 14
  5. 18000
  6. 2
  7. 1
  8. 4
  9. 38
  10. 35
  11. 81000
  12. 181
  13. 64.3
  14. 9
  15. 21
  16. 2
  17. 8
  18. 2200
  19. 88
  20. 25
  21. 77
  22. 8
  23. 5
  24. 30
  25. 14
  26. 15
  27. 912
  28. 48
  29. 27.3
  30. 11
  31. 45
  32. 4
  33. 2532
  34. 4
  35. 10
  36. 3105
  37. 720
  38. 15
  39. 1236
  40. 84

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