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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 6 · 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.Saanvi scored 37 marks out of 50 in a test. What percentage did Saanvi score?
  2. 2.5/9 × 4/6 =
  3. 3.40 + 8 × 6 − 24 =
  4. 4.The ratio of boys to girls in a class is 8 : 1. There are 32 boys. How many girls are there?
  5. 5.8.19 + 7.1 =
  6. 6.A hostel has enough food for 3 students for 10 days. How many days will the same food last for 5 students?
  7. 7.Find the LCM of 8, 3 and 12.
  8. 8.If 7 kites cost ₹329, how much do 18 kites cost (in ₹)?
  9. 9.1/2 × 8/11 =
  10. 10.2/3 − 2/4 =
  11. 11.Find the LCM of 6, 3 and 2.
  12. 12.Find the HCF of 45 and 20.
  13. 13.Which is closest to 204 × 30? (Round each number first.) (a) 12000 (b) 600 (c) 60000 (d) 6000
  14. 14.Find the LCM of 13, 9 and 3.
  15. 15.A hostel has enough food for 4 students for 30 days. How many days will the same food last for 10 students?
  16. 16.The HCF of two numbers is 9 and their LCM is 567. One of the numbers is 63. What is the other number?
  17. 17.What is the smallest number you must add to 865 so that it divides exactly by 13?
  18. 18.50% of a number is 183. What is the number?
  19. 19.1/3 of 33 + 3 × 2 =
  20. 20.If 6 mangoes cost ₹204, how much do 12 mangoes cost (in ₹)?
  21. 21.1.38 + 9.6 =
  22. 22.39 + 3 × 6 − 10 =
  23. 23.Three temple bells ring every 30, 24 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  24. 24.3 × (14 − 9) + 63 ÷ 7 =
  25. 25.Write 9/50 as a percent.
  26. 26.A car goes 90 km on 9 litres of petrol. How far can it go on 14 litres (in km)?
  27. 27.7.64 + 9.9 =
  28. 28.What is 50% of 274?
  29. 29.If 3 notebooks cost ₹42, how much do 5 notebooks cost (in ₹)?
  30. 30.Round 41166 to the nearest hundred.
  31. 31.A car goes 72 km on 3 litres of petrol. How far can it go on 40 litres (in km)?
  32. 32.A hostel has enough food for 3 students for 25 days. How many days will the same food last for 5 students?
  33. 33.1/3 + 2/10 =
  34. 34.4 ÷ 2 × 2 + 18 =
  35. 35.If 3 kg of rice costs ₹111, how many kg can you buy for ₹370?
  36. 36.What is 2/9 of ₹189?
  37. 37.The ratio of boys to girls in a class is 6 : 1. There are 30 boys. How many girls are there?
  38. 38.Find the LCM of 32 and 28.
  39. 39.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 12, 8 or 5.
  40. 40.86 − 45 ÷ 5 × 6 =

Answer key

  1. 74
  2. 10/27
  3. 64
  4. 4
  5. 15.29
  6. 6
  7. 24
  8. 846
  9. 4/11
  10. 1/6
  11. 6
  12. 5
  13. 6000
  14. 117
  15. 12
  16. 81
  17. 6
  18. 366
  19. 17
  20. 408
  21. 10.98
  22. 47
  23. 120
  24. 24
  25. 18
  26. 140
  27. 17.54
  28. 137
  29. 70
  30. 41200
  31. 960
  32. 15
  33. 8/15
  34. 22
  35. 10
  36. 42
  37. 5
  38. 224
  39. 121
  40. 32

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