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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 350 · 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.How many factors does 56 have?
  2. 2.If 4 pencil boxes cost ₹188, how much do 19 pencil boxes cost (in ₹)?
  3. 3.Round 75392 to the nearest hundred.
  4. 4.Find the third proportional to 4 and 8 (that is, 4 : 8 = 8 : ?).
  5. 5.Round 9925 to the nearest hundred.
  6. 6.43 − 45 ÷ 9 × 2 =
  7. 7.Two tanks hold 280 litres and 120 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  8. 8.Divide ₹350 between Ananya and Zoya in the ratio 4 : 3. How much does Ananya get (in ₹)?
  9. 9.What is the smallest number you must take away from 947 so that it divides exactly by 3?
  10. 10.Divide ₹371 between Ananya and Sneha in the ratio 1 : 6. How much does Sneha get (in ₹)?
  11. 11.Divide ₹550 between Dev and Diya in the ratio 5 : 6. How much does Diya get (in ₹)?
  12. 12.Which is closest to 1792 ÷ 19? (a) 45 (b) 180 (c) 900 (d) 90
  13. 13.9 × (12 − 4) + 36 ÷ 4 =
  14. 14.If 10 pencil boxes cost ₹340, how much do 5 pencil boxes cost (in ₹)?
  15. 15.What is 2/3 of 72 kg?
  16. 16.If 3 notebooks cost ₹18, how much do 15 notebooks cost (in ₹)?
  17. 17.Two tanks hold 120 litres and 100 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  18. 18.What percent of 40 is 2?
  19. 19.A car goes 92 km on 4 litres of petrol. How far can it go on 33 litres (in km)?
  20. 20.The HCF of two numbers is 8 and their LCM is 48. One of the numbers is 24. What is the other number?
  21. 21.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 10, 15 or 4.
  22. 22.Which is closest to 496 × 79? (Round each number first.) (a) 4000 (b) 400000 (c) 40000 (d) 80000
  23. 23.47 + 10 × 7 − 42 =
  24. 24.If 3 kg of rice costs ₹231, how many kg can you buy for ₹539?
  25. 25.Three temple bells ring every 8, 12 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  26. 26.4 × (13 − 9) + 24 ÷ 2 =
  27. 27.If 3 kg of rice costs ₹201, how many kg can you buy for ₹134?
  28. 28.Divide ₹288 between Priya and Rohan in the ratio 1 : 5. How much does Priya get (in ₹)?
  29. 29.40% of a number is 138. What is the number?
  30. 30.2/4 − 4/10 =
  31. 31.Which is closest to 201 + 799 + 605? (a) 1700 (b) 1800 (c) 1600 (d) 1500
  32. 32.Find the LCM of 54 and 24.
  33. 33.Find the smallest number bigger than 15 that leaves a remainder of 7 when divided by 10, 15 or 12.
  34. 34.How many factors does 59 have?
  35. 35.4/6 − 2/4 =
  36. 36.Which of these numbers divides exactly by 3? (a) 9336 (b) 8047 (c) 3713 (d) 9895
  37. 37.2/5 − 1/12 =
  38. 38.Which is closest to 598 + 897 + 299? (a) 1800 (b) 1700 (c) 1900 (d) 2000
  39. 39.40.5 ÷ 9 =
  40. 40.A car goes 230 km on 10 litres of petrol. How far can it go on 30 litres (in km)?

Answer key

  1. 8
  2. 893
  3. 75400
  4. 16
  5. 9900
  6. 33
  7. 40
  8. 200
  9. 2
  10. 318
  11. 300
  12. 90
  13. 81
  14. 170
  15. 48
  16. 90
  17. 20
  18. 5
  19. 759
  20. 16
  21. 62
  22. 40000
  23. 75
  24. 7
  25. 120
  26. 28
  27. 2
  28. 48
  29. 345
  30. 1/10
  31. 1600
  32. 216
  33. 67
  34. 2
  35. 1/6
  36. 9336
  37. 19/60
  38. 1800
  39. 4.5
  40. 690

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