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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 309 · 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 5% of 220?
  2. 2.Round 93.17 to one decimal place. =
  3. 3.120% of a number is 156. What is the number?
  4. 4.2 painters can paint a school in 8 days. How many days would 4 painters take, working at the same speed?
  5. 5.Which is closest to 904 × 71? (Round each number first.) (a) 630000 (b) 63000 (c) 126000 (d) 6300
  6. 6.If 11 cricket balls cost ₹187, how much do 18 cricket balls cost (in ₹)?
  7. 7.What is the smallest number you must add to 141 so that it divides exactly by 4?
  8. 8.Which is closest to 196 × 20? (Round each number first.) (a) 40000 (b) 400 (c) 4000 (d) 8000
  9. 9.Find the LCM of 12, 5 and 8.
  10. 10.3/4 of 40 + 9 × 7 =
  11. 11.Three temple bells ring every 20, 12 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  12. 12.A car goes 144 km on 9 litres of petrol. How far can it go on 21 litres (in km)?
  13. 13.The HCF of two numbers is 9 and their LCM is 162. One of the numbers is 18. What is the other number?
  14. 14.Three temple bells ring every 8, 30 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  15. 15.Divide ₹416 between Aarav and Manav in the ratio 8 : 5. How much does Manav get (in ₹)?
  16. 16.What is the smallest number you must take away from 195 so that it divides exactly by 8?
  17. 17.71 − 25 ÷ 5 × 8 =
  18. 18.4 : 2 = 20 : ?
  19. 19.Divide ₹143 between Rohan and Manav in the ratio 9 : 4. How much does Manav get (in ₹)?
  20. 20.A car goes 105 km on 7 litres of petrol. How far can it go on 21 litres (in km)?
  21. 21.Find the HCF of 126 and 28.
  22. 22.What is the smallest number you must add to 916 so that it divides exactly by 3?
  23. 23.If 4 kg of rice costs ₹228, how many kg can you buy for ₹684?
  24. 24.2/3 of 6 + 9 × 7 =
  25. 25.Find the LCM of 4, 7 and 12.
  26. 26.Which is closest to 902 × 88? (Round each number first.) (a) 8100 (b) 810000 (c) 81000 (d) 162000
  27. 27.What is the smallest number you must add to 234 so that it divides exactly by 7?
  28. 28.Find the HCF of 21 and 9.
  29. 29.Round 88628 to the nearest hundred.
  30. 30.What is the smallest number you must add to 501 so that it divides exactly by 6?
  31. 31.Find the LCM of 36 and 30.
  32. 32.4/12 + 1/6 =
  33. 33.A hostel has enough food for 7 students for 18 days. How many days will the same food last for 21 students?
  34. 34.What is the smallest number you must take away from 327 so that it divides exactly by 6?
  35. 35.What is 12% of 175?
  36. 36.9 × (14 − 1) + 25 ÷ 5 =
  37. 37.Karan scored 56 marks out of 80 in a test. What percentage did Karan score?
  38. 38.If 3 kites cost ₹48, how much do 4 kites cost (in ₹)?
  39. 39.2 painters can paint a school in 22 days. How many days would 11 painters take, working at the same speed?
  40. 40.Find the third proportional to 7 and 14 (that is, 7 : 14 = 14 : ?).

Answer key

  1. 11
  2. 93.2
  3. 130
  4. 4
  5. 63000
  6. 306
  7. 3
  8. 4000
  9. 120
  10. 93
  11. 60
  12. 336
  13. 81
  14. 120
  15. 160
  16. 3
  17. 31
  18. 10
  19. 44
  20. 315
  21. 14
  22. 2
  23. 12
  24. 67
  25. 84
  26. 81000
  27. 4
  28. 3
  29. 88600
  30. 3
  31. 180
  32. 1/2
  33. 6
  34. 3
  35. 21
  36. 122
  37. 70
  38. 64
  39. 4
  40. 28

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