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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 892 · 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. 1.6.8 × 2 =
  2. 2.A car goes 90 km on 5 litres of petrol. How far can it go on 26 litres (in km)?
  3. 3.2.57 + 6.2 =
  4. 4.Find the HCF of 42 and 98.
  5. 5.Round 17.33 to one decimal place. =
  6. 6.2/12 + 1/2 =
  7. 7.If 5 kites cost ₹205, how much do 9 kites cost (in ₹)?
  8. 8.Pooja takes 75 seconds and Diya takes 45 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?
  9. 9.2.41 + 1.5 =
  10. 10.How many factors does 51 have?
  11. 11.If 3 notebooks cost ₹57, how much do 2 notebooks cost (in ₹)?
  12. 12.If 8 kg of rice costs ₹216, how many kg can you buy for ₹243?
  13. 13.(10 + 12) × 6 − 25 =
  14. 14.A hall floor is 280 cm long and 80 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  15. 15.Find the HCF of 28 and 21.
  16. 16.How many factors does 29 have?
  17. 17.Round 92228 to the nearest hundred.
  18. 18.Which is closest to 304 × 28? (Round each number first.) (a) 9000 (b) 90000 (c) 18000 (d) 900
  19. 19.2 painters can paint a school in 22 days. How many days would 4 painters take, working at the same speed?
  20. 20.What is 1/3 of 15 km?
  21. 21.Write 4/5 as a percent.
  22. 22.Find the smallest number bigger than 10 that leaves a remainder of 3 when divided by 4, 10 or 6.
  23. 23.Divide ₹198 between Nisha and Meera in the ratio 4 : 5. How much does Meera get (in ₹)?
  24. 24.2.7 × 7 =
  25. 25.Which is closest to 796 × 88? (Round each number first.) (a) 144000 (b) 720000 (c) 72000 (d) 7200
  26. 26.What is 25% of 504?
  27. 27.How many factors does 62 have?
  28. 28.Which is closest to 699 + 601 + 698? (a) 2200 (b) 2000 (c) 1900 (d) 2100
  29. 29.Three temple bells ring every 18, 24 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  30. 30.Ishaan scored 5 marks out of 20 in a test. What percentage did Ishaan score?
  31. 31.A car goes 28 km on 2 litres of petrol. How far can it go on 12 litres (in km)?
  32. 32.What is 10% of 550?
  33. 33.If 10 cricket balls cost ₹510, how much do 15 cricket balls cost (in ₹)?
  34. 34.What percent of 250 is 205?
  35. 35.9 : 6 = 36 : ?
  36. 36.Which is closest to 803 × 79? (Round each number first.) (a) 64000 (b) 640000 (c) 6400 (d) 128000
  37. 37.5 painters can paint a school in 8 days. How many days would 4 painters take, working at the same speed?
  38. 38.41 + 8 × 8 − 12 =
  39. 39.A hall floor is 135 cm long and 90 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  40. 40.Find the LCM of 9 and 2.

Answer key

  1. 13.6
  2. 468
  3. 8.77
  4. 14
  5. 17.3
  6. 2/3
  7. 369
  8. 225
  9. 3.91
  10. 4
  11. 38
  12. 9
  13. 107
  14. 14
  15. 7
  16. 2
  17. 92200
  18. 9000
  19. 11
  20. 5
  21. 80
  22. 63
  23. 110
  24. 18.9
  25. 72000
  26. 126
  27. 4
  28. 2000
  29. 72
  30. 25
  31. 168
  32. 55
  33. 765
  34. 82
  35. 24
  36. 64000
  37. 10
  38. 93
  39. 6
  40. 18

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