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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 773 · 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.A car goes 96 km on 8 litres of petrol. How far can it go on 12 litres (in km)?
  2. 2.Which of these numbers divides exactly by 9? (a) 5601 (b) 5004 (c) 9277 (d) 7167
  3. 3.What is 3/4 of ₹32?
  4. 4.If 3 kg of rice costs ₹75, how many kg can you buy for ₹200?
  5. 5.Three temple bells ring every 8, 12 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  6. 6.1/2 + 7/8 =
  7. 7.What is the smallest number you must take away from 123 so that it divides exactly by 11?
  8. 8.How many factors does 34 have?
  9. 9.If 6 mangoes cost ₹108, how much do 11 mangoes cost (in ₹)?
  10. 10.Find the LCM of 15, 9 and 5.
  11. 11.Which of these numbers divides exactly by 3? (a) 4519 (b) 3331 (c) 1197 (d) 1966
  12. 12.Round 39.22 to one decimal place. =
  13. 13.The HCF of two numbers is 3 and their LCM is 84. One of the numbers is 21. What is the other number?
  14. 14.1/5 × 5/9 =
  15. 15.(3 + 5) × 2 − 7 =
  16. 16.What is the smallest number you must take away from 821 so that it divides exactly by 13?
  17. 17.120% of a number is 396. What is the number?
  18. 18.Two tanks hold 35 litres and 45 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  19. 19.Which of these numbers divides exactly by 11? (a) 1054 (b) 2098 (c) 8943 (d) 1019
  20. 20.Which is closest to 103 + 900 + 103? (a) 1300 (b) 1200 (c) 1100 (d) 1000
  21. 21.9 : 13 = 72 : ?
  22. 22.11 : 8 = 77 : ?
  23. 23.A hall floor is 200 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  24. 24.5 painters can paint a school in 10 days. How many days would 2 painters take, working at the same speed?
  25. 25.The ratio of boys to girls in a class is 7 : 1. There are 56 boys. How many girls are there?
  26. 26.What is the smallest number you must take away from 471 so that it divides exactly by 13?
  27. 27.Find the LCM of 3, 12 and 7.
  28. 28.4 : 7 = 28 : ?
  29. 29.What is the smallest number you must add to 778 so that it divides exactly by 11?
  30. 30.Find the HCF of 81 and 63.
  31. 31.1/7 + 4/9 =
  32. 32.9 ÷ 2 =
  33. 33.Priya scored 56 marks out of 80 in a test. What percentage did Priya score?
  34. 34.Which is closest to 298 × 80? (Round each number first.) (a) 48000 (b) 24000 (c) 240000 (d) 2400
  35. 35.Round 33.87 to one decimal place. =
  36. 36.A hall floor is 360 cm long and 225 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  37. 37.What is the smallest number you must take away from 375 so that it divides exactly by 8?
  38. 38.Which is closest to 200 × 92? (Round each number first.) (a) 36000 (b) 18000 (c) 1800 (d) 180000
  39. 39.Round 84.13 to one decimal place. =
  40. 40.What is 1/6 of ₹36?

Answer key

  1. 144
  2. 5004
  3. 24
  4. 8
  5. 120
  6. 11/8
  7. 2
  8. 4
  9. 198
  10. 45
  11. 1197
  12. 39.2
  13. 12
  14. 1/9
  15. 9
  16. 2
  17. 330
  18. 5
  19. 8943
  20. 1100
  21. 104
  22. 56
  23. 12
  24. 25
  25. 8
  26. 3
  27. 84
  28. 49
  29. 3
  30. 9
  31. 37/63
  32. 4.5
  33. 70
  34. 24000
  35. 33.9
  36. 40
  37. 7
  38. 18000
  39. 84.1
  40. 6

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