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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 74 · 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.Three temple bells ring every 24, 5 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  2. 2.How many factors does 59 have?
  3. 3.Diya scored 17 marks out of 20 in a test. What percentage did Diya score?
  4. 4.Which is closest to 595 + 697 + 400? (a) 1700 (b) 1600 (c) 1900 (d) 1800
  5. 5.1/3 − 1/10 =
  6. 6.Write 3/5 as a percent.
  7. 7.5 painters can paint a school in 13 days. How many days would 13 painters take, working at the same speed?
  8. 8.If 7 kg of rice costs ₹154, how many kg can you buy for ₹308?
  9. 9.What is the smallest number you must add to 293 so that it divides exactly by 8?
  10. 10.Which is closest to 700 + 501 + 895? (a) 2000 (b) 2300 (c) 2100 (d) 2200
  11. 11.A hall floor is 100 cm long and 80 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  12. 12.9 : 5 = 18 : ?
  13. 13.Which is closest to 1396 ÷ 21? (a) 35 (b) 70 (c) 700 (d) 140
  14. 14.Which of these numbers divides exactly by 3? (a) 9808 (b) 1287 (c) 2386 (d) 9256
  15. 15.3/11 × 1/2 =
  16. 16.Which is closest to 901 ÷ 31? (a) 60 (b) 30 (c) 15 (d) 300
  17. 17.What is the smallest number you must take away from 837 so that it divides exactly by 6?
  18. 18.Three temple bells ring every 15, 12 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  19. 19.What is the smallest number you must add to 497 so that it divides exactly by 9?
  20. 20.Find the HCF of 70 and 90.
  21. 21.Find the smallest number bigger than 5 that leaves a remainder of 1 when divided by 5, 3 or 4.
  22. 22.The ratio of boys to girls in a class is 5 : 2. There are 20 boys. How many girls are there?
  23. 23.Find the HCF of 105 and 45.
  24. 24.Which is closest to 396 × 18? (Round each number first.) (a) 80000 (b) 8000 (c) 800 (d) 16000
  25. 25.The ratio of boys to girls in a class is 7 : 8. There are 14 boys. How many girls are there?
  26. 26.Find the LCM of 2, 6 and 4.
  27. 27.Which is closest to 400 × 69? (Round each number first.) (a) 280000 (b) 28000 (c) 2800 (d) 56000
  28. 28.Find the LCM of 54 and 24.
  29. 29.12 painters can paint a school in 28 days. How many days would 7 painters take, working at the same speed?
  30. 30.How many factors does 94 have?
  31. 31.10% of a number is 38. What is the number?
  32. 32.The HCF of two numbers is 6 and their LCM is 60. One of the numbers is 30. What is the other number?
  33. 33.Round 67308 to the nearest ten.
  34. 34.Which is closest to 298 × 40? (Round each number first.) (a) 12000 (b) 1200 (c) 24000 (d) 120000
  35. 35.A car goes 75 km on 3 litres of petrol. How far can it go on 30 litres (in km)?
  36. 36.Find the smallest number bigger than 9 that leaves a remainder of 3 when divided by 5, 4 or 9.
  37. 37.(15 + 14) × 8 − 3 =
  38. 38.What is 5% of 260?
  39. 39.Find the LCM of 20 and 36.
  40. 40.If 11 notebooks cost ₹220, how much do 20 notebooks cost (in ₹)?

Answer key

  1. 120
  2. 2
  3. 85
  4. 1700
  5. 7/30
  6. 60
  7. 5
  8. 14
  9. 3
  10. 2100
  11. 20
  12. 10
  13. 70
  14. 1287
  15. 3/22
  16. 30
  17. 3
  18. 60
  19. 7
  20. 10
  21. 61
  22. 8
  23. 15
  24. 8000
  25. 16
  26. 12
  27. 28000
  28. 216
  29. 48
  30. 4
  31. 380
  32. 12
  33. 67310
  34. 12000
  35. 750
  36. 183
  37. 229
  38. 13
  39. 180
  40. 400

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