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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 940 · 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 smallest number bigger than 6 that leaves a remainder of 1 when divided by 4, 6 or 3.
  2. 2.Find the LCM of 10, 9 and 2.
  3. 3.Round 28.41 to one decimal place. =
  4. 4.Find the HCF of 63 and 36.
  5. 5.Isha scored 22 marks out of 25 in a test. What percentage did Isha score?
  6. 6.The HCF of two numbers is 4 and their LCM is 24. One of the numbers is 8. What is the other number?
  7. 7.Which of these numbers divides exactly by 11? (a) 2408 (b) 6826 (c) 2104 (d) 2211
  8. 8.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 12, 15 or 3.
  9. 9.Which is closest to 2991 ÷ 49? (a) 30 (b) 600 (c) 120 (d) 60
  10. 10.Find the third proportional to 2 and 8 (that is, 2 : 8 = 8 : ?).
  11. 11.Round 64.72 to one decimal place. =
  12. 12.Find the LCM of 3, 12 and 8.
  13. 13.A car goes 32 km on 4 litres of petrol. How far can it go on 15 litres (in km)?
  14. 14.What is the smallest number you must add to 761 so that it divides exactly by 7?
  15. 15.Which is closest to 599 × 68? (Round each number first.) (a) 420000 (b) 4200 (c) 84000 (d) 42000
  16. 16.Which of these numbers divides exactly by 4? (a) 5327 (b) 9868 (c) 8238 (d) 7942
  17. 17.Which is closest to 802 × 49? (Round each number first.) (a) 400000 (b) 80000 (c) 40000 (d) 4000
  18. 18.A hostel has enough food for 2 students for 23 days. How many days will the same food last for 23 students?
  19. 19.If 2 cricket balls cost ₹10, how much do 17 cricket balls cost (in ₹)?
  20. 20.6 painters can paint a school in 14 days. How many days would 7 painters take, working at the same speed?
  21. 21.7 painters can paint a school in 22 days. How many days would 11 painters take, working at the same speed?
  22. 22.If 2 cricket balls cost ₹16, how much do 6 cricket balls cost (in ₹)?
  23. 23.6/8 − 2/3 =
  24. 24.How many factors does 69 have?
  25. 25.If 3 notebooks cost ₹126, how much do 12 notebooks cost (in ₹)?
  26. 26.Round 97747 to the nearest thousand.
  27. 27.4/7 − 2/5 =
  28. 28.Divide ₹171 between Vivaan and Manav in the ratio 2 : 1. How much does Vivaan get (in ₹)?
  29. 29.Find the LCM of 9 and 4.
  30. 30.60% of a number is 294. What is the number?
  31. 31.36 ÷ 3 × 2 + 11 =
  32. 32.37 − 42 ÷ 6 × 4 =
  33. 33.What is the smallest number you must add to 231 so that it divides exactly by 6?
  34. 34.The HCF of two numbers is 2 and their LCM is 30. One of the numbers is 10. What is the other number?
  35. 35.Which is closest to 401 × 68? (Round each number first.) (a) 280000 (b) 56000 (c) 2800 (d) 28000
  36. 36.2/6 + 4/5 =
  37. 37.(14 + 9) × 2 − 5 =
  38. 38.Find the third proportional to 2 and 6 (that is, 2 : 6 = 6 : ?).
  39. 39.If 6 erasers cost ₹168, how much do 10 erasers cost (in ₹)?
  40. 40.How many factors does 48 have?

Answer key

  1. 13
  2. 90
  3. 28.4
  4. 9
  5. 88
  6. 12
  7. 2211
  8. 61
  9. 60
  10. 32
  11. 64.7
  12. 24
  13. 120
  14. 2
  15. 42000
  16. 9868
  17. 40000
  18. 2
  19. 85
  20. 12
  21. 14
  22. 48
  23. 1/12
  24. 4
  25. 504
  26. 98000
  27. 6/35
  28. 114
  29. 36
  30. 490
  31. 35
  32. 9
  33. 3
  34. 6
  35. 28000
  36. 17/15
  37. 41
  38. 18
  39. 280
  40. 10

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