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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 330 · 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.Three temple bells ring every 15, 24 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  2. 2.What is the smallest number you must add to 511 so that it divides exactly by 4?
  3. 3.What percent of 50 is 33?
  4. 4.Which is closest to 197 + 205 + 895? (a) 1200 (b) 1400 (c) 1500 (d) 1300
  5. 5.8.72 + 3.3 =
  6. 6.Divide ₹462 between Saanvi and Priya in the ratio 9 : 2. How much does Saanvi get (in ₹)?
  7. 7.Find the third proportional to 5 and 15 (that is, 5 : 15 = 15 : ?).
  8. 8.Find the LCM of 13, 6 and 2.
  9. 9.4.16 + 5.1 =
  10. 10.Three temple bells ring every 5, 24 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  11. 11.What percent of 40 is 22?
  12. 12.What is the smallest number you must add to 183 so that it divides exactly by 13?
  13. 13.11 : 2 = 88 : ?
  14. 14.9 × (22 − 15) + 66 ÷ 6 =
  15. 15.If 4 mangoes cost ₹188, how much do 3 mangoes cost (in ₹)?
  16. 16.Find the HCF of 77 and 99.
  17. 17.Round 15600 to the nearest thousand.
  18. 18.Find the third proportional to 2 and 6 (that is, 2 : 6 = 6 : ?).
  19. 19.Write 2/25 as a percent.
  20. 20.1/6 + 3/5 =
  21. 21.Which is closest to 800 ÷ 19? (a) 40 (b) 80 (c) 20 (d) 400
  22. 22.Write 1/10 as a percent.
  23. 23.Round 23048 to the nearest hundred.
  24. 24.Which is closest to 97 + 397 + 504? (a) 1100 (b) 1000 (c) 1200 (d) 900
  25. 25.A car goes 50 km on 2 litres of petrol. How far can it go on 40 litres (in km)?
  26. 26.Which is closest to 397 + 797 + 705? (a) 1800 (b) 1900 (c) 2100 (d) 2000
  27. 27.Which is closest to 102 + 498 + 696? (a) 1500 (b) 1400 (c) 1300 (d) 1200
  28. 28.Divide ₹230 between Sneha and Arjun in the ratio 3 : 7. How much does Arjun get (in ₹)?
  29. 29.What is the smallest number you must add to 844 so that it divides exactly by 3?
  30. 30.A hostel has enough food for 5 students for 12 days. How many days will the same food last for 3 students?
  31. 31.Which is closest to 1496 ÷ 51? (a) 30 (b) 15 (c) 60 (d) 300
  32. 32.1/10 × 5/6 =
  33. 33.9.6 ÷ 4 =
  34. 34.Three temple bells ring every 12, 5 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  35. 35.47 + 4 × 2 − 4 =
  36. 36.The ratio of boys to girls in a class is 7 : 8. There are 21 boys. How many girls are there?
  37. 37.What is 1/7 of 175 litres?
  38. 38.Zoya takes 36 seconds and Meera takes 40 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?
  39. 39.5.18 + 8.2 =
  40. 40.1/2 of 20 + 8 × 3 =

Answer key

  1. 120
  2. 1
  3. 66
  4. 1300
  5. 12.02
  6. 378
  7. 45
  8. 78
  9. 9.26
  10. 120
  11. 55
  12. 12
  13. 16
  14. 74
  15. 141
  16. 11
  17. 16000
  18. 18
  19. 8
  20. 23/30
  21. 40
  22. 10
  23. 23000
  24. 1000
  25. 1000
  26. 1900
  27. 1300
  28. 161
  29. 2
  30. 20
  31. 30
  32. 1/12
  33. 2.4
  34. 60
  35. 51
  36. 24
  37. 25
  38. 360
  39. 13.38
  40. 34

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