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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 481 · 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.Find the smallest number bigger than 10 that leaves a remainder of 5 when divided by 6, 10 or 9.
  2. 2.Write 1/2 as a percent.
  3. 3.A car goes 88 km on 4 litres of petrol. How far can it go on 7 litres (in km)?
  4. 4.If 9 kg of rice costs ₹333, how many kg can you buy for ₹444?
  5. 5.Which of these numbers divides exactly by 6? (a) 2521 (b) 1238 (c) 4970 (d) 1626
  6. 6.4 : 15 = 24 : ?
  7. 7.62.1 ÷ 9 =
  8. 8.If 3 notebooks cost ₹111, how much do 15 notebooks cost (in ₹)?
  9. 9.Which is closest to 1204 ÷ 31? (a) 80 (b) 20 (c) 40 (d) 400
  10. 10.Rohan takes 30 seconds and Dev takes 50 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?
  11. 11.11 : 5 = 22 : ?
  12. 12.2 : 6 = 16 : ?
  13. 13.The ratio of boys to girls in a class is 4 : 3. There are 28 boys. How many girls are there?
  14. 14.10% of a number is 18. What is the number?
  15. 15.1/2 of 8 + 4 × 2 =
  16. 16.1/3 + 2/8 =
  17. 17.Find the LCM of 7, 2 and 5.
  18. 18.Divide ₹48 between Manav and Karan in the ratio 1 : 5. How much does Karan get (in ₹)?
  19. 19.Find the LCM of 6, 15 and 14.
  20. 20.If 11 pencil boxes cost ₹528, how much do 6 pencil boxes cost (in ₹)?
  21. 21.What is the smallest number you must take away from 673 so that it divides exactly by 12?
  22. 22.23 − 12 ÷ 6 × 4 =
  23. 23.Divide ₹299 between Aarav and Zoya in the ratio 5 : 8. How much does Aarav get (in ₹)?
  24. 24.12 painters can paint a school in 15 days. How many days would 4 painters take, working at the same speed?
  25. 25.Round 41.77 to one decimal place. =
  26. 26.Round 75.17 to one decimal place. =
  27. 27.Aarav takes 75 seconds and Kabir takes 45 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?
  28. 28.What is the smallest number you must take away from 222 so that it divides exactly by 12?
  29. 29.What percent of 25 is 4?
  30. 30.A hall floor is 160 cm long and 60 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  31. 31.Meera scored 6 marks out of 20 in a test. What percentage did Meera score?
  32. 32.Find the LCM of 20 and 16.
  33. 33.2 : 5 = 12 : ?
  34. 34.Which is closest to 200 + 902 + 399? (a) 1400 (b) 1600 (c) 1500 (d) 1700
  35. 35.Which is closest to 497 + 303 + 496? (a) 1200 (b) 1500 (c) 1300 (d) 1400
  36. 36.Which is closest to 203 × 39? (Round each number first.) (a) 80000 (b) 16000 (c) 800 (d) 8000
  37. 37.Which is closest to 902 + 897 + 598? (a) 2600 (b) 2300 (c) 2500 (d) 2400
  38. 38.(6 + 4) × 3 − 14 =
  39. 39.If 7 kg of rice costs ₹196, how many kg can you buy for ₹252?
  40. 40.Which is closest to 396 + 695 + 403? (a) 1600 (b) 1700 (c) 1400 (d) 1500

Answer key

  1. 95
  2. 50
  3. 154
  4. 12
  5. 1626
  6. 90
  7. 6.9
  8. 555
  9. 40
  10. 150
  11. 10
  12. 48
  13. 21
  14. 180
  15. 12
  16. 7/12
  17. 70
  18. 40
  19. 210
  20. 288
  21. 1
  22. 15
  23. 115
  24. 45
  25. 41.8
  26. 75.2
  27. 225
  28. 6
  29. 16
  30. 24
  31. 30
  32. 80
  33. 30
  34. 1500
  35. 1300
  36. 8000
  37. 2400
  38. 16
  39. 9
  40. 1500

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