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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 107 · 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.Which is closest to 297 + 695 + 600? (a) 1800 (b) 1700 (c) 1600 (d) 1500
  2. 2.A car goes 132 km on 12 litres of petrol. How far can it go on 38 litres (in km)?
  3. 3.5.94 + 9.9 =
  4. 4.Find the LCM of 14 and 8.
  5. 5.14 + 5 × 11 − 3 =
  6. 6.8 : 2 = 32 : ?
  7. 7.A hall floor is 90 cm long and 60 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  8. 8.68.6 ÷ 7 =
  9. 9.Karan takes 50 seconds and Nisha takes 80 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?
  10. 10.4/6 − 3/5 =
  11. 11.5/7 of 21 + 2 × 4 =
  12. 12.Find the LCM of 30 and 24.
  13. 13.Find the LCM of 6, 13 and 4.
  14. 14.Round 48.82 to one decimal place. =
  15. 15.Round 11.66 to one decimal place. =
  16. 16.Divide ₹297 between Arjun and Ishaan in the ratio 6 : 5. How much does Arjun get (in ₹)?
  17. 17.What is 50% of 228?
  18. 18.Three temple bells ring every 6, 20 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  19. 19.1/2 of 22 + 3 × 9 =
  20. 20.Round 98.32 to one decimal place. =
  21. 21.Three temple bells ring every 5, 12 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  22. 22.What is the smallest number you must take away from 242 so that it divides exactly by 7?
  23. 23.What percent of 40 is 16?
  24. 24.1/3 + 2/4 =
  25. 25.3 × (15 − 4) + 28 ÷ 7 =
  26. 26.Which of these numbers divides exactly by 11? (a) 1369 (b) 1663 (c) 5720 (d) 3657
  27. 27.2/4 − 1/3 =
  28. 28.If 2 notebooks cost ₹18, how much do 15 notebooks cost (in ₹)?
  29. 29.Three temple bells ring every 4, 8 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  30. 30.2.94 + 2.5 =
  31. 31.What is 30% of 410?
  32. 32.Rohan scored 18 marks out of 20 in a test. What percentage did Rohan score?
  33. 33.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 15, 3 or 10.
  34. 34.33 ÷ 3 × 6 + 5 =
  35. 35.50% of a number is 99. What is the number?
  36. 36.The HCF of two numbers is 2 and their LCM is 28. One of the numbers is 4. What is the other number?
  37. 37.1/5 × 2/3 =
  38. 38.3/8 of 80 + 7 × 4 =
  39. 39.A car goes 66 km on 3 litres of petrol. How far can it go on 9 litres (in km)?
  40. 40.20% of a number is 97. What is the number?

Answer key

  1. 1600
  2. 418
  3. 15.84
  4. 56
  5. 66
  6. 8
  7. 6
  8. 9.8
  9. 400
  10. 1/15
  11. 23
  12. 120
  13. 156
  14. 48.8
  15. 11.7
  16. 162
  17. 114
  18. 60
  19. 38
  20. 98.3
  21. 60
  22. 4
  23. 40
  24. 5/6
  25. 37
  26. 5720
  27. 1/6
  28. 135
  29. 120
  30. 5.44
  31. 123
  32. 90
  33. 32
  34. 71
  35. 198
  36. 14
  37. 2/15
  38. 58
  39. 198
  40. 485

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