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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 48 · 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.If 4 notebooks cost ₹28, how much do 7 notebooks cost (in ₹)?
  2. 2.Find the HCF of 15 and 6.
  3. 3.6 : 5 = 42 : ?
  4. 4.9.3 × 3 =
  5. 5.48 ÷ 4 × 6 + 13 =
  6. 6.75% of a number is 183. What is the number?
  7. 7.Which of these numbers divides exactly by 8? (a) 8863 (b) 7208 (c) 3514 (d) 7263
  8. 8.If 7 kg of rice costs ₹182, how many kg can you buy for ₹104?
  9. 9.The ratio of boys to girls in a class is 7 : 9. There are 56 boys. How many girls are there?
  10. 10.What is the smallest number you must add to 734 so that it divides exactly by 13?
  11. 11.Three temple bells ring every 8, 6 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  12. 12.Find the HCF of 56 and 21.
  13. 13.Which is closest to 402 + 895 + 795? (a) 2100 (b) 2200 (c) 2000 (d) 2300
  14. 14.If 9 pencil boxes cost ₹216, how much do 10 pencil boxes cost (in ₹)?
  15. 15.Find the third proportional to 4 and 8 (that is, 4 : 8 = 8 : ?).
  16. 16.Three temple bells ring every 6, 8 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  17. 17.How many factors does 24 have?
  18. 18.A car goes 133 km on 7 litres of petrol. How far can it go on 19 litres (in km)?
  19. 19.6 × (20 − 14) + 15 ÷ 3 =
  20. 20.1.4 × 2 =
  21. 21.A hall floor is 175 cm long and 125 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  22. 22.5/8 + 3/11 =
  23. 23.Nisha scored 11 marks out of 25 in a test. What percentage did Nisha score?
  24. 24.If 4 pens cost ₹68, how much do 17 pens cost (in ₹)?
  25. 25.Write 9/10 as a percent.
  26. 26.What is the smallest number you must take away from 404 so that it divides exactly by 7?
  27. 27.If 7 kg of rice costs ₹581, how many kg can you buy for ₹1245?
  28. 28.11 painters can paint a school in 23 days. How many days would 23 painters take, working at the same speed?
  29. 29.Find the LCM of 15, 10 and 7.
  30. 30.2/5 × 1/9 =
  31. 31.Three temple bells ring every 9, 4 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  32. 32.Write 1/2 as a percent.
  33. 33.If 5 kg of rice costs ₹445, how many kg can you buy for ₹1246?
  34. 34.75% of a number is 375. What is the number?
  35. 35.How many factors does 21 have?
  36. 36.What is the smallest number you must take away from 973 so that it divides exactly by 6?
  37. 37.Find the HCF of 22 and 33.
  38. 38.63.9 ÷ 9 =
  39. 39.How many factors does 42 have?
  40. 40.Which of these numbers divides exactly by 6? (a) 2225 (b) 6615 (c) 1692 (d) 8279

Answer key

  1. 49
  2. 3
  3. 35
  4. 27.9
  5. 85
  6. 244
  7. 7208
  8. 4
  9. 72
  10. 7
  11. 120
  12. 7
  13. 2100
  14. 240
  15. 16
  16. 24
  17. 8
  18. 361
  19. 41
  20. 2.8
  21. 35
  22. 79/88
  23. 44
  24. 289
  25. 90
  26. 5
  27. 15
  28. 11
  29. 210
  30. 2/45
  31. 36
  32. 50
  33. 14
  34. 500
  35. 4
  36. 1
  37. 11
  38. 7.1
  39. 8
  40. 1692

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