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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 91 · 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. 1.20 + 4 × 9 − 2 =
  2. 2.Round 37.13 to one decimal place. =
  3. 3.Kavya takes 30 seconds and Rahul takes 54 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?
  4. 4.12 : 14 = 24 : ?
  5. 5.5/9 × 1/5 =
  6. 6.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 15, 12 or 5.
  7. 7.Round 10207 to the nearest hundred.
  8. 8.Which of these numbers divides exactly by 9? (a) 7911 (b) 9799 (c) 2624 (d) 2584
  9. 9.1/5 of 45 + 4 × 2 =
  10. 10.A car goes 96 km on 8 litres of petrol. How far can it go on 23 litres (in km)?
  11. 11.Find the LCM of 25 and 45.
  12. 12.3/7 of 49 + 2 × 2 =
  13. 13.The HCF of two numbers is 7 and their LCM is 294. One of the numbers is 42. What is the other number?
  14. 14.34 + 2 × 3 − 24 =
  15. 15.Which of these numbers divides exactly by 9? (a) 4130 (b) 8820 (c) 4486 (d) 7680
  16. 16.Find the LCM of 13, 2 and 4.
  17. 17.What is 2/3 of 18 students?
  18. 18.If 7 kg of rice costs ₹231, how many kg can you buy for ₹297?
  19. 19.1/2 + 7/8 =
  20. 20.Two tanks hold 405 litres and 360 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  21. 21.The HCF of two numbers is 5 and their LCM is 60. One of the numbers is 15. What is the other number?
  22. 22.Find the HCF of 12 and 16.
  23. 23.If 7 pencil boxes cost ₹245, how much do 19 pencil boxes cost (in ₹)?
  24. 24.20% of a number is 69. What is the number?
  25. 25.Nisha takes 48 seconds and Sneha takes 60 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?
  26. 26.Which of these numbers divides exactly by 8? (a) 5170 (b) 6257 (c) 3704 (d) 9495
  27. 27.5% of a number is 1. What is the number?
  28. 28.Which is closest to 903 × 21? (Round each number first.) (a) 18000 (b) 1800 (c) 36000 (d) 180000
  29. 29.50% of a number is 132. What is the number?
  30. 30.A car goes 36 km on 3 litres of petrol. How far can it go on 9 litres (in km)?
  31. 31.What is the smallest number you must add to 145 so that it divides exactly by 8?
  32. 32.Which is closest to 297 × 51? (Round each number first.) (a) 30000 (b) 150000 (c) 15000 (d) 1500
  33. 33.Divide ₹450 between Arjun and Vivaan in the ratio 7 : 2. How much does Arjun get (in ₹)?
  34. 34.12% of a number is 72. What is the number?
  35. 35.9/10 + 2/3 =
  36. 36.Write 1/2 as a percent.
  37. 37.1/11 + 3/9 =
  38. 38.What is 7/8 of ₹72?
  39. 39.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 3, 10 or 4.
  40. 40.60% of a number is 228. What is the number?

Answer key

  1. 54
  2. 37.1
  3. 270
  4. 28
  5. 1/9
  6. 61
  7. 10200
  8. 7911
  9. 17
  10. 276
  11. 225
  12. 25
  13. 49
  14. 16
  15. 8820
  16. 52
  17. 12
  18. 9
  19. 11/8
  20. 45
  21. 20
  22. 4
  23. 665
  24. 345
  25. 240
  26. 3704
  27. 20
  28. 18000
  29. 264
  30. 108
  31. 7
  32. 15000
  33. 350
  34. 600
  35. 47/30
  36. 50
  37. 14/33
  38. 63
  39. 61
  40. 380

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