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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 866 · 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 504 + 203 + 597? (a) 1400 (b) 1200 (c) 1300 (d) 1500
  2. 2.A car goes 110 km on 11 litres of petrol. How far can it go on 16 litres (in km)?
  3. 3.Divide ₹583 between Isha and Sneha in the ratio 7 : 4. How much does Sneha get (in ₹)?
  4. 4.Write 1/10 as a percent.
  5. 5.2/9 + 7/10 =
  6. 6.What is the smallest number you must take away from 869 so that it divides exactly by 3?
  7. 7.A hall floor is 135 cm long and 90 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  8. 8.If 2 kg of rice costs ₹46, how many kg can you buy for ₹161?
  9. 9.Two tanks hold 80 litres and 140 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  10. 10.Two tanks hold 40 litres and 180 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  11. 11.Find the smallest number bigger than 5 that leaves a remainder of 2 when divided by 5, 3 or 4.
  12. 12.What percent of 200 is 122?
  13. 13.Write 47/50 as a percent.
  14. 14.2/11 + 3/7 =
  15. 15.Find the third proportional to 6 and 24 (that is, 6 : 24 = 24 : ?).
  16. 16.Find the third proportional to 5 and 10 (that is, 5 : 10 = 10 : ?).
  17. 17.9 ÷ 6 =
  18. 18.If 3 kg of rice costs ₹267, how many kg can you buy for ₹890?
  19. 19.Which of these numbers divides exactly by 4? (a) 2230 (b) 6657 (c) 5377 (d) 1980
  20. 20.Round 51.63 to one decimal place. =
  21. 21.If 9 notebooks cost ₹135, how much do 17 notebooks cost (in ₹)?
  22. 22.Which is closest to 803 + 501 + 903? (a) 2400 (b) 2100 (c) 2200 (d) 2300
  23. 23.How many factors does 57 have?
  24. 24.Find the HCF of 36 and 30.
  25. 25.8 : 10 = 64 : ?
  26. 26.How many factors does 44 have?
  27. 27.Two tanks hold 135 litres and 90 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  28. 28.5 : 14 = 15 : ?
  29. 29.A hall floor is 315 cm long and 90 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  30. 30.Three temple bells ring every 6, 20 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  31. 31.Which of these numbers divides exactly by 4? (a) 1907 (b) 5839 (c) 7936 (d) 9849
  32. 32.Find the smallest number bigger than 9 that leaves a remainder of 3 when divided by 6, 9 or 8.
  33. 33.10 painters can paint a school in 7 days. How many days would 7 painters take, working at the same speed?
  34. 34.(7 + 8) × 2 − 18 =
  35. 35.The ratio of boys to girls in a class is 8 : 5. There are 80 boys. How many girls are there?
  36. 36.A car goes 216 km on 12 litres of petrol. How far can it go on 4 litres (in km)?
  37. 37.Which is closest to 800 × 39? (Round each number first.) (a) 320000 (b) 3200 (c) 32000 (d) 64000
  38. 38.1/2 of 14 + 9 × 7 =
  39. 39.6/12 − 1/8 =
  40. 40.5 : 2 = 40 : ?

Answer key

  1. 1300
  2. 160
  3. 212
  4. 10
  5. 83/90
  6. 2
  7. 6
  8. 7
  9. 20
  10. 20
  11. 62
  12. 61
  13. 94
  14. 47/77
  15. 96
  16. 20
  17. 1.5
  18. 10
  19. 1980
  20. 51.6
  21. 255
  22. 2200
  23. 4
  24. 6
  25. 80
  26. 6
  27. 45
  28. 42
  29. 14
  30. 60
  31. 7936
  32. 75
  33. 10
  34. 12
  35. 50
  36. 72
  37. 32000
  38. 70
  39. 3/8
  40. 16

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