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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 196 · 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.Which is closest to 1006 ÷ 21? (a) 100 (b) 500 (c) 50 (d) 25
  2. 2.Three temple bells ring every 5, 8 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  3. 3.Find the smallest number bigger than 15 that leaves a remainder of 3 when divided by 6, 15 or 10.
  4. 4.4 painters can paint a school in 18 days. How many days would 2 painters take, working at the same speed?
  5. 5.Three temple bells ring every 18, 10 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  6. 6.2 : 3 = 12 : ?
  7. 7.If 11 bottles of juice cost ₹308, how much do 19 bottles of juice cost (in ₹)?
  8. 8.Round 11036 to the nearest thousand.
  9. 9.A hall floor is 125 cm long and 75 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  10. 10.A hall floor is 240 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  11. 11.Two tanks hold 105 litres and 90 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  12. 12.Aditya takes 48 seconds and Meera takes 72 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?
  13. 13.1.32 + 9.3 =
  14. 14.Which is closest to 203 + 196 + 397? (a) 800 (b) 1000 (c) 700 (d) 900
  15. 15.Which is closest to 98 + 899 + 102? (a) 1000 (b) 1300 (c) 1100 (d) 1200
  16. 16.38 + 4 × 10 − 30 =
  17. 17.2/5 × 7/11 =
  18. 18.20 ÷ 2 × 9 + 2 =
  19. 19.What percent of 50 is 45?
  20. 20.Which is closest to 203 + 597 + 798? (a) 1800 (b) 1700 (c) 1500 (d) 1600
  21. 21.20 ÷ 5 × 5 + 29 =
  22. 22.What is the smallest number you must add to 251 so that it divides exactly by 4?
  23. 23.10 : 9 = 20 : ?
  24. 24.Which of these numbers divides exactly by 6? (a) 2257 (b) 2217 (c) 8970 (d) 2831
  25. 25.Find the LCM of 7 and 5.
  26. 26.What is 6/7 of 140 litres?
  27. 27.Divide ₹340 between Nisha and Priya in the ratio 3 : 7. How much does Nisha get (in ₹)?
  28. 28.1.1 × 3 =
  29. 29.4/9 × 1/2 =
  30. 30.If 9 cricket balls cost ₹477, how much do 20 cricket balls cost (in ₹)?
  31. 31.Find the HCF of 54 and 24.
  32. 32.Find the LCM of 12 and 8.
  33. 33.The ratio of boys to girls in a class is 3 : 7. There are 6 boys. How many girls are there?
  34. 34.6 : 15 = 18 : ?
  35. 35.Which of these numbers divides exactly by 6? (a) 1173 (b) 6187 (c) 3566 (d) 9990
  36. 36.Find the LCM of 3, 5 and 10.
  37. 37.3.69 + 2.3 =
  38. 38.Rohan scored 40 marks out of 80 in a test. What percentage did Rohan score?
  39. 39.How many factors does 83 have?
  40. 40.1/3 of 27 + 5 × 6 =

Answer key

  1. 50
  2. 40
  3. 33
  4. 36
  5. 90
  6. 18
  7. 532
  8. 11000
  9. 15
  10. 40
  11. 15
  12. 144
  13. 10.62
  14. 800
  15. 1100
  16. 48
  17. 14/55
  18. 92
  19. 90
  20. 1600
  21. 49
  22. 1
  23. 18
  24. 8970
  25. 35
  26. 120
  27. 102
  28. 3.3
  29. 2/9
  30. 1060
  31. 6
  32. 24
  33. 14
  34. 45
  35. 9990
  36. 30
  37. 5.99
  38. 50
  39. 2
  40. 39

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