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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 954 · 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 98 have?
  2. 2.Which is closest to 98 + 700 + 796? (a) 1500 (b) 1700 (c) 1800 (d) 1600
  3. 3.Write 17/25 as a percent.
  4. 4.(6 + 16) × 9 − 26 =
  5. 5.15 ÷ 3 × 3 + 4 =
  6. 6.Which of these numbers divides exactly by 6? (a) 1935 (b) 2910 (c) 1597 (d) 7085
  7. 7.3/11 − 1/6 =
  8. 8.2/3 + 6/8 =
  9. 9.2 × (18 − 11) + 45 ÷ 5 =
  10. 10.How many factors does 66 have?
  11. 11.A car goes 150 km on 10 litres of petrol. How far can it go on 23 litres (in km)?
  12. 12.Three temple bells ring every 15, 10 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  13. 13.Which is closest to 3993 ÷ 49? (a) 80 (b) 800 (c) 40 (d) 160
  14. 14.8 : 11 = 48 : ?
  15. 15.Which is closest to 701 + 296 + 405? (a) 1400 (b) 1600 (c) 1300 (d) 1500
  16. 16.Write 3/4 as a percent.
  17. 17.Find the third proportional to 6 and 12 (that is, 6 : 12 = 12 : ?).
  18. 18.The ratio of boys to girls in a class is 3 : 4. There are 15 boys. How many girls are there?
  19. 19.Find the HCF of 45 and 18.
  20. 20.If 7 kg of rice costs ₹189, how many kg can you buy for ₹216?
  21. 21.What is the smallest number you must add to 949 so that it divides exactly by 6?
  22. 22.The ratio of boys to girls in a class is 9 : 7. There are 72 boys. How many girls are there?
  23. 23.Which is closest to 501 + 197 + 598? (a) 1200 (b) 1300 (c) 1500 (d) 1400
  24. 24.2 × (22 − 5) + 15 ÷ 5 =
  25. 25.If 6 bottles of juice cost ₹348, how much do 5 bottles of juice cost (in ₹)?
  26. 26.Which of these numbers divides exactly by 4? (a) 1170 (b) 6389 (c) 9731 (d) 2596
  27. 27.Two tanks hold 150 litres and 200 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  28. 28.Find the LCM of 4 and 3.
  29. 29.Which is closest to 497 × 78? (Round each number first.) (a) 80000 (b) 4000 (c) 40000 (d) 400000
  30. 30.A car goes 192 km on 8 litres of petrol. How far can it go on 24 litres (in km)?
  31. 31.Find the third proportional to 2 and 8 (that is, 2 : 8 = 8 : ?).
  32. 32.Find the third proportional to 4 and 12 (that is, 4 : 12 = 12 : ?).
  33. 33.What is 1/4 of 24 students?
  34. 34.3.3 × 4 =
  35. 35.Which is closest to 701 × 21? (Round each number first.) (a) 28000 (b) 140000 (c) 14000 (d) 1400
  36. 36.The HCF of two numbers is 9 and their LCM is 567. One of the numbers is 63. What is the other number?
  37. 37.Divide ₹66 between Dev and Aditya in the ratio 8 : 3. How much does Aditya get (in ₹)?
  38. 38.30% of a number is 12. What is the number?
  39. 39.Two tanks hold 90 litres and 150 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  40. 40.If 11 pencil boxes cost ₹528, how much do 8 pencil boxes cost (in ₹)?

Answer key

  1. 6
  2. 1600
  3. 68
  4. 172
  5. 19
  6. 2910
  7. 7/66
  8. 17/12
  9. 23
  10. 8
  11. 345
  12. 60
  13. 80
  14. 66
  15. 1400
  16. 75
  17. 24
  18. 20
  19. 9
  20. 8
  21. 5
  22. 56
  23. 1300
  24. 37
  25. 290
  26. 2596
  27. 50
  28. 12
  29. 40000
  30. 576
  31. 32
  32. 36
  33. 6
  34. 13.2
  35. 14000
  36. 81
  37. 18
  38. 40
  39. 30
  40. 384

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