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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 754 · 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.Which is closest to 304 + 302 + 896? (a) 1600 (b) 1400 (c) 1700 (d) 1500
  2. 2.Divide ₹405 between Priya and Ananya in the ratio 1 : 8. How much does Priya get (in ₹)?
  3. 3.34 + 5 × 4 − 4 =
  4. 4.8 : 13 = 16 : ?
  5. 5.Which is closest to 196 + 197 + 300? (a) 600 (b) 700 (c) 800 (d) 900
  6. 6.4 × (29 − 27) + 66 ÷ 6 =
  7. 7.If 6 notebooks cost ₹240, how much do 9 notebooks cost (in ₹)?
  8. 8.Find the third proportional to 5 and 10 (that is, 5 : 10 = 10 : ?).
  9. 9.1/6 of 54 + 2 × 2 =
  10. 10.Which is closest to 1802 ÷ 31? (a) 60 (b) 120 (c) 600 (d) 30
  11. 11.Find the HCF of 40 and 64.
  12. 12.Ishaan scored 30 marks out of 40 in a test. What percentage did Ishaan score?
  13. 13.If 7 kg of rice costs ₹595, how many kg can you buy for ₹680?
  14. 14.How many factors does 15 have?
  15. 15.Find the LCM of 12, 10 and 15.
  16. 16.If 9 notebooks cost ₹297, how much do 2 notebooks cost (in ₹)?
  17. 17.Write 2/5 as a percent.
  18. 18.Two tanks hold 135 litres and 90 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  19. 19.23 + 9 × 10 − 19 =
  20. 20.Divide ₹108 between Aarav and Zoya in the ratio 1 : 5. How much does Aarav get (in ₹)?
  21. 21.Aditya scored 11 marks out of 25 in a test. What percentage did Aditya score?
  22. 22.Dev scored 22 marks out of 40 in a test. What percentage did Dev score?
  23. 23.If 7 cricket balls cost ₹315, how much do 8 cricket balls cost (in ₹)?
  24. 24.How many factors does 72 have?
  25. 25.Round 95.94 to one decimal place. =
  26. 26.The HCF of two numbers is 9 and their LCM is 405. One of the numbers is 81. What is the other number?
  27. 27.2 : 4 = 16 : ?
  28. 28.6 painters can paint a school in 30 days. How many days would 12 painters take, working at the same speed?
  29. 29.1/3 × 10/12 =
  30. 30.Which is closest to 896 × 22? (Round each number first.) (a) 18000 (b) 36000 (c) 1800 (d) 180000
  31. 31.6/9 × 3/4 =
  32. 32.What is 15% of 580?
  33. 33.Find the smallest number bigger than 9 that leaves a remainder of 1 when divided by 4, 9 or 6.
  34. 34.9/10 − 7/8 =
  35. 35.11 + 10 × 7 − 10 =
  36. 36.4/6 − 1/3 =
  37. 37.(12 + 10) × 8 − 8 =
  38. 38.What is the smallest number you must take away from 721 so that it divides exactly by 4?
  39. 39.What is the smallest number you must take away from 100 so that it divides exactly by 3?
  40. 40.A car goes 26 km on 2 litres of petrol. How far can it go on 10 litres (in km)?

Answer key

  1. 1500
  2. 45
  3. 50
  4. 26
  5. 700
  6. 19
  7. 360
  8. 20
  9. 13
  10. 60
  11. 8
  12. 75
  13. 8
  14. 4
  15. 60
  16. 66
  17. 40
  18. 45
  19. 94
  20. 18
  21. 44
  22. 55
  23. 360
  24. 12
  25. 95.9
  26. 45
  27. 32
  28. 15
  29. 5/18
  30. 18000
  31. 1/2
  32. 87
  33. 37
  34. 1/40
  35. 71
  36. 1/3
  37. 168
  38. 1
  39. 1
  40. 130

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