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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 365 · 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.What is the smallest number you must take away from 945 so that it divides exactly by 13?
  2. 2.What is 1/6 of 66 kg?
  3. 3.If 10 cricket balls cost ₹270, how much do 19 cricket balls cost (in ₹)?
  4. 4.Which is closest to 799 + 901 + 697? (a) 2400 (b) 2500 (c) 2300 (d) 2600
  5. 5.What percent of 50 is 28?
  6. 6.What is the smallest number you must add to 574 so that it divides exactly by 9?
  7. 7.Find the HCF of 60 and 45.
  8. 8.(15 + 14) × 4 − 28 =
  9. 9.Find the HCF of 40 and 30.
  10. 10.The HCF of two numbers is 7 and their LCM is 245. One of the numbers is 35. What is the other number?
  11. 11.Three temple bells ring every 10, 8 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  12. 12.If 3 kites cost ₹129, how much do 17 kites cost (in ₹)?
  13. 13.10 + 4 × 12 − 3 =
  14. 14.If 2 kg of rice costs ₹148, how many kg can you buy for ₹814?
  15. 15.Divide ₹826 between Isha and Aditya in the ratio 5 : 9. How much does Aditya get (in ₹)?
  16. 16.What is the smallest number you must take away from 197 so that it divides exactly by 7?
  17. 17.Write 47/50 as a percent.
  18. 18.8/12 − 1/3 =
  19. 19.4 : 3 = 12 : ?
  20. 20.Meera scored 24 marks out of 25 in a test. What percentage did Meera score?
  21. 21.Divide ₹440 between Kabir and Karan in the ratio 7 : 4. How much does Kabir get (in ₹)?
  22. 22.How many factors does 56 have?
  23. 23.15 + 3 × 11 − 11 =
  24. 24.Which is closest to 298 × 68? (Round each number first.) (a) 210000 (b) 2100 (c) 42000 (d) 21000
  25. 25.A hall floor is 350 cm long and 250 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  26. 26.Divide ₹48 between Diya and Kabir in the ratio 1 : 5. How much does Diya get (in ₹)?
  27. 27.Round 69.42 to one decimal place. =
  28. 28.Divide ₹770 between Vivaan and Ananya in the ratio 9 : 5. How much does Ananya get (in ₹)?
  29. 29.Find the HCF of 60 and 24.
  30. 30.7 : 13 = 14 : ?
  31. 31.Find the HCF of 65 and 52.
  32. 32.6 × (29 − 23) + 20 ÷ 2 =
  33. 33.Three temple bells ring every 5, 30 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  34. 34.Find the HCF of 22 and 33.
  35. 35.What is the smallest number you must add to 705 so that it divides exactly by 12?
  36. 36.6 : 14 = 24 : ?
  37. 37.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 15, 4 or 6.
  38. 38.A hostel has enough food for 3 students for 28 days. How many days will the same food last for 2 students?
  39. 39.Find the third proportional to 4 and 20 (that is, 4 : 20 = 20 : ?).
  40. 40.What is the smallest number you must take away from 388 so that it divides exactly by 3?

Answer key

  1. 9
  2. 11
  3. 513
  4. 2400
  5. 56
  6. 2
  7. 15
  8. 88
  9. 10
  10. 49
  11. 120
  12. 731
  13. 55
  14. 11
  15. 531
  16. 1
  17. 94
  18. 1/3
  19. 9
  20. 96
  21. 280
  22. 8
  23. 37
  24. 21000
  25. 35
  26. 8
  27. 69.4
  28. 275
  29. 12
  30. 26
  31. 13
  32. 46
  33. 60
  34. 11
  35. 3
  36. 56
  37. 62
  38. 42
  39. 100
  40. 1

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