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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 103 · 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.Round 82.14 to one decimal place. =
  2. 2.Divide ₹117 between Farhan and Ananya in the ratio 4 : 9. How much does Farhan get (in ₹)?
  3. 3.43 − 18 ÷ 3 × 4 =
  4. 4.Two tanks hold 90 litres and 20 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  5. 5.If 3 kg of rice costs ₹84, how many kg can you buy for ₹196?
  6. 6.Find the third proportional to 3 and 9 (that is, 3 : 9 = 9 : ?).
  7. 7.1/2 + 8/11 =
  8. 8.3/8 of 88 + 2 × 8 =
  9. 9.Find the HCF of 20 and 32.
  10. 10.5.6 × 5 =
  11. 11.7/8 − 3/4 =
  12. 12.What is the smallest number you must take away from 196 so that it divides exactly by 12?
  13. 13.What is 40% of 350?
  14. 14.What is 1/9 of 234 kg?
  15. 15.Round 55227 to the nearest hundred.
  16. 16.Dev scored 2 marks out of 25 in a test. What percentage did Dev score?
  17. 17.Round 38.84 to one decimal place. =
  18. 18.120% of a number is 66. What is the number?
  19. 19.Find the HCF of 54 and 63.
  20. 20.Round 19425 to the nearest hundred.
  21. 21.Three temple bells ring every 4, 8 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  22. 22.The ratio of boys to girls in a class is 3 : 2. There are 24 boys. How many girls are there?
  23. 23.Kavya takes 54 seconds and Kabir takes 90 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?
  24. 24.Find the LCM of 18 and 24.
  25. 25.Three temple bells ring every 12, 20 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  26. 26.Find the LCM of 6, 10 and 2.
  27. 27.10% of a number is 20. What is the number?
  28. 28.If 9 kg of rice costs ₹297, how many kg can you buy for ₹396?
  29. 29.Find the smallest number bigger than 15 that leaves a remainder of 4 when divided by 15, 8 or 12.
  30. 30.4/5 of 35 + 7 × 7 =
  31. 31.Round 15357 to the nearest ten.
  32. 32.A hostel has enough food for 4 students for 25 days. How many days will the same food last for 5 students?
  33. 33.Find the LCM of 5, 15 and 7.
  34. 34.What is the smallest number you must add to 891 so that it divides exactly by 4?
  35. 35.If 6 kg of rice costs ₹216, how many kg can you buy for ₹180?
  36. 36.The ratio of boys to girls in a class is 3 : 5. There are 12 boys. How many girls are there?
  37. 37.A hall floor is 175 cm long and 100 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  38. 38.Which of these numbers divides exactly by 8? (a) 5334 (b) 9781 (c) 1201 (d) 6808
  39. 39.76 − 18 ÷ 2 × 8 =
  40. 40.8 painters can paint a school in 26 days. How many days would 4 painters take, working at the same speed?

Answer key

  1. 82.1
  2. 36
  3. 19
  4. 10
  5. 7
  6. 27
  7. 27/22
  8. 49
  9. 4
  10. 28
  11. 1/8
  12. 4
  13. 140
  14. 26
  15. 55200
  16. 8
  17. 38.8
  18. 55
  19. 9
  20. 19400
  21. 40
  22. 16
  23. 270
  24. 72
  25. 60
  26. 30
  27. 200
  28. 12
  29. 124
  30. 77
  31. 15360
  32. 20
  33. 105
  34. 1
  35. 5
  36. 20
  37. 28
  38. 6808
  39. 4
  40. 52

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