← Practice: number skills lesson New set →

Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 551 · 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. 1.60% of a number is 153. What is the number?
  2. 2.60% of a number is 6. What is the number?
  3. 3.What is the smallest number you must add to 691 so that it divides exactly by 9?
  4. 4.If 8 kg of rice costs ₹416, how many kg can you buy for ₹104?
  5. 5.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?
  6. 6.What is 4/9 of ₹126?
  7. 7.40% of a number is 116. What is the number?
  8. 8.7 × (20 − 18) + 64 ÷ 8 =
  9. 9.Find the LCM of 2, 7 and 10.
  10. 10.37 + 4 × 12 − 4 =
  11. 11.What is the smallest number you must add to 973 so that it divides exactly by 4?
  12. 12.3 × (27 − 8) + 6 ÷ 2 =
  13. 13.Which of these numbers divides exactly by 3? (a) 4492 (b) 8559 (c) 9028 (d) 5575
  14. 14.7 painters can paint a school in 13 days. How many days would 13 painters take, working at the same speed?
  15. 15.A hall floor is 200 cm long and 160 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  16. 16.6 painters can paint a school in 25 days. How many days would 15 painters take, working at the same speed?
  17. 17.Divide ₹132 between Rohan and Tara in the ratio 2 : 1. How much does Rohan get (in ₹)?
  18. 18.Divide ₹80 between Pooja and Tara in the ratio 2 : 3. How much does Tara get (in ₹)?
  19. 19.2/6 × 4/5 =
  20. 20.Round 26.68 to one decimal place. =
  21. 21.What is 10% of 380?
  22. 22.How many factors does 21 have?
  23. 23.How many factors does 83 have?
  24. 24.Which is closest to 297 × 61? (Round each number first.) (a) 1800 (b) 36000 (c) 18000 (d) 180000
  25. 25.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 12, 4 or 15.
  26. 26.5% of a number is 2. What is the number?
  27. 27.Find the LCM of 16 and 12.
  28. 28.Isha takes 40 seconds and Pooja takes 75 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?
  29. 29.Dev scored 20 marks out of 40 in a test. What percentage did Dev score?
  30. 30.1.42 + 9.8 =
  31. 31.31 + 11 × 5 − 3 =
  32. 32.Find the smallest number bigger than 9 that leaves a remainder of 4 when divided by 5, 9 or 6.
  33. 33.If 4 notebooks cost ₹60, how much do 6 notebooks cost (in ₹)?
  34. 34.1.23 + 9.6 =
  35. 35.What is 120% of 180?
  36. 36.Two tanks hold 90 litres and 120 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  37. 37.What is the smallest number you must take away from 446 so that it divides exactly by 13?
  38. 38.If 2 kg of rice costs ₹110, how many kg can you buy for ₹440?
  39. 39.What is the smallest number you must add to 429 so that it divides exactly by 12?
  40. 40.Two tanks hold 360 litres and 80 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?

Answer key

  1. 255
  2. 10
  3. 2
  4. 2
  5. 6
  6. 56
  7. 290
  8. 22
  9. 70
  10. 81
  11. 3
  12. 60
  13. 8559
  14. 7
  15. 20
  16. 10
  17. 88
  18. 48
  19. 4/15
  20. 26.7
  21. 38
  22. 4
  23. 2
  24. 18000
  25. 62
  26. 40
  27. 48
  28. 600
  29. 50
  30. 11.22
  31. 83
  32. 94
  33. 90
  34. 10.83
  35. 216
  36. 30
  37. 4
  38. 8
  39. 3
  40. 40

Free quantitative aptitude lessons, practice and worksheets at talentjr.in/quantitative-aptitude