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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 577 · 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. 1.9 × (13 − 4) + 21 ÷ 3 =
  2. 2.3 × (20 − 3) + 32 ÷ 8 =
  3. 3.A car goes 33 km on 3 litres of petrol. How far can it go on 5 litres (in km)?
  4. 4.What percent of 50 is 16?
  5. 5.Which is closest to 305 + 304 + 500? (a) 1100 (b) 1200 (c) 1000 (d) 1300
  6. 6.Two tanks hold 100 litres and 75 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  7. 7.Saanvi scored 6 marks out of 25 in a test. What percentage did Saanvi score?
  8. 8.The ratio of boys to girls in a class is 3 : 1. There are 12 boys. How many girls are there?
  9. 9.Two tanks hold 90 litres and 240 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  10. 10.What is the smallest number you must add to 326 so that it divides exactly by 12?
  11. 11.Arjun scored 13 marks out of 20 in a test. What percentage did Arjun score?
  12. 12.Which is closest to 396 + 203 + 99? (a) 600 (b) 700 (c) 900 (d) 800
  13. 13.Which is closest to 197 × 39? (Round each number first.) (a) 800 (b) 80000 (c) 8000 (d) 16000
  14. 14.Find the LCM of 5 and 6.
  15. 15.Find the HCF of 72 and 60.
  16. 16.Which is closest to 1792 ÷ 21? (a) 45 (b) 90 (c) 900 (d) 180
  17. 17.Round 49881 to the nearest thousand.
  18. 18.What is 75% of 432?
  19. 19.A hall floor is 320 cm long and 120 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  20. 20.7 × (27 − 23) + 88 ÷ 8 =
  21. 21.Nisha takes 50 seconds and Karan takes 60 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?
  22. 22.What percent of 80 is 76?
  23. 23.14 + 2 × 3 − 2 =
  24. 24.Find the third proportional to 3 and 15 (that is, 3 : 15 = 15 : ?).
  25. 25.60 − 48 ÷ 6 × 6 =
  26. 26.What percent of 40 is 36?
  27. 27.What is the smallest number you must add to 325 so that it divides exactly by 11?
  28. 28.Which is closest to 795 + 204 + 403? (a) 1400 (b) 1500 (c) 1600 (d) 1300
  29. 29.If 11 mangoes cost ₹143, how much do 12 mangoes cost (in ₹)?
  30. 30.16 + 10 × 12 − 12 =
  31. 31.36 + 2 × 2 − 11 =
  32. 32.Divide ₹140 between Meera and Ishaan in the ratio 1 : 3. How much does Meera get (in ₹)?
  33. 33.150% of a number is 777. What is the number?
  34. 34.3 painters can paint a school in 10 days. How many days would 5 painters take, working at the same speed?
  35. 35.6.3 × 7 =
  36. 36.If 6 kites cost ₹210, how much do 9 kites cost (in ₹)?
  37. 37.Which of these numbers divides exactly by 9? (a) 4471 (b) 9738 (c) 6819 (d) 9481
  38. 38.Nisha takes 48 seconds and Farhan takes 80 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?
  39. 39.Round 49659 to the nearest hundred.
  40. 40.How many factors does 13 have?

Answer key

  1. 88
  2. 55
  3. 55
  4. 32
  5. 1100
  6. 25
  7. 24
  8. 4
  9. 30
  10. 10
  11. 65
  12. 700
  13. 8000
  14. 30
  15. 12
  16. 90
  17. 50000
  18. 324
  19. 24
  20. 39
  21. 300
  22. 95
  23. 18
  24. 75
  25. 12
  26. 90
  27. 5
  28. 1400
  29. 156
  30. 124
  31. 29
  32. 35
  33. 518
  34. 6
  35. 44.1
  36. 315
  37. 9738
  38. 240
  39. 49700
  40. 2

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