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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 190 · 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 HCF of 91 and 39.
  2. 2.Diya scored 3 marks out of 25 in a test. What percentage did Diya score?
  3. 3.What percent of 400 is 128?
  4. 4.Aditya takes 40 seconds and Pooja 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?
  5. 5.Which is closest to 992 ÷ 19? (a) 100 (b) 50 (c) 25 (d) 500
  6. 6.How many factors does 27 have?
  7. 7.75% of a number is 72. What is the number?
  8. 8.30% of a number is 111. What is the number?
  9. 9.Which is closest to 399 × 51? (Round each number first.) (a) 200000 (b) 2000 (c) 20000 (d) 40000
  10. 10.Which is closest to 898 × 78? (Round each number first.) (a) 144000 (b) 72000 (c) 720000 (d) 7200
  11. 11.The ratio of boys to girls in a class is 3 : 8. There are 12 boys. How many girls are there?
  12. 12.If 11 bottles of juice cost ₹374, how much do 15 bottles of juice cost (in ₹)?
  13. 13.Three temple bells ring every 8, 10 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  14. 14.Find the LCM of 15, 2 and 8.
  15. 15.A hostel has enough food for 7 students for 19 days. How many days will the same food last for 19 students?
  16. 16.If 10 bottles of juice cost ₹440, how much do 13 bottles of juice cost (in ₹)?
  17. 17.4/9 + 1/5 =
  18. 18.What is 3/7 of 196 km?
  19. 19.How many factors does 51 have?
  20. 20.Divide ₹550 between Pooja and Rohan in the ratio 3 : 8. How much does Pooja get (in ₹)?
  21. 21.Ishaan takes 54 seconds and Pooja 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?
  22. 22.Which is closest to 1506 ÷ 51? (a) 300 (b) 15 (c) 60 (d) 30
  23. 23.(17 + 13) × 6 − 7 =
  24. 24.(8 + 18) × 3 − 5 =
  25. 25.Find the LCM of 14 and 8.
  26. 26.Which is closest to 598 × 22? (Round each number first.) (a) 12000 (b) 120000 (c) 1200 (d) 24000
  27. 27.Find the LCM of 10, 11 and 4.
  28. 28.If 9 cricket balls cost ₹99, how much do 2 cricket balls cost (in ₹)?
  29. 29.Write 37/50 as a percent.
  30. 30.Find the smallest number bigger than 10 that leaves a remainder of 2 when divided by 3, 8 or 10.
  31. 31.Divide ₹78 between Ishaan and Nisha in the ratio 5 : 1. How much does Nisha get (in ₹)?
  32. 32.How many factors does 14 have?
  33. 33.Divide ₹42 between Pooja and Rohan in the ratio 1 : 2. How much does Pooja get (in ₹)?
  34. 34.A car goes 80 km on 8 litres of petrol. How far can it go on 12 litres (in km)?
  35. 35.Divide ₹120 between Manav and Meera in the ratio 1 : 9. How much does Meera get (in ₹)?
  36. 36.2/6 + 3/10 =
  37. 37.Which is closest to 695 + 904 + 797? (a) 2500 (b) 2300 (c) 2400 (d) 2600
  38. 38.36 + 9 × 7 − 14 =
  39. 39.Divide ₹40 between Aarav and Diya in the ratio 4 : 1. How much does Aarav get (in ₹)?
  40. 40.80% of a number is 60. What is the number?

Answer key

  1. 13
  2. 12
  3. 32
  4. 200
  5. 50
  6. 4
  7. 96
  8. 370
  9. 20000
  10. 72000
  11. 32
  12. 510
  13. 120
  14. 120
  15. 7
  16. 572
  17. 29/45
  18. 84
  19. 4
  20. 150
  21. 270
  22. 30
  23. 173
  24. 73
  25. 56
  26. 12000
  27. 220
  28. 22
  29. 74
  30. 122
  31. 13
  32. 4
  33. 14
  34. 120
  35. 108
  36. 19/30
  37. 2400
  38. 85
  39. 32
  40. 75

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