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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 510 · 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.Divide ₹156 between Karan and Ananya in the ratio 9 : 4. How much does Ananya get (in ₹)?
  2. 2.What is the smallest number you must add to 742 so that it divides exactly by 6?
  3. 3.Find the HCF of 56 and 63.
  4. 4.Find the smallest number bigger than 15 that leaves a remainder of 7 when divided by 10, 9 or 15.
  5. 5.1.73 + 9.9 =
  6. 6.The ratio of boys to girls in a class is 8 : 5. There are 32 boys. How many girls are there?
  7. 7.Divide ₹54 between Manav and Ananya in the ratio 5 : 4. How much does Manav get (in ₹)?
  8. 8.Which of these numbers divides exactly by 8? (a) 7112 (b) 2306 (c) 5529 (d) 7827
  9. 9.A car goes 48 km on 6 litres of petrol. How far can it go on 21 litres (in km)?
  10. 10.Tara scored 32 marks out of 80 in a test. What percentage did Tara score?
  11. 11.If 7 kg of rice costs ₹616, how many kg can you buy for ₹528?
  12. 12.6/7 − 5/12 =
  13. 13.Find the LCM of 4 and 3.
  14. 14.Which is closest to 497 × 80? (Round each number first.) (a) 400000 (b) 80000 (c) 40000 (d) 4000
  15. 15.Find the third proportional to 7 and 14 (that is, 7 : 14 = 14 : ?).
  16. 16.What is 60% of 135?
  17. 17.5/6 − 4/10 =
  18. 18.Tara scored 32 marks out of 50 in a test. What percentage did Tara score?
  19. 19.Which of these numbers divides exactly by 3? (a) 1294 (b) 5462 (c) 2288 (d) 8667
  20. 20.Find the LCM of 8, 13 and 2.
  21. 21.The ratio of boys to girls in a class is 2 : 9. There are 20 boys. How many girls are there?
  22. 22.Round 36.78 to one decimal place. =
  23. 23.4/8 + 1/6 =
  24. 24.A car goes 135 km on 9 litres of petrol. How far can it go on 40 litres (in km)?
  25. 25.What percent of 50 is 33?
  26. 26.Which is closest to 597 + 503 + 205? (a) 1400 (b) 1200 (c) 1500 (d) 1300
  27. 27.What is the smallest number you must take away from 269 so that it divides exactly by 9?
  28. 28.What percent of 20 is 2?
  29. 29.Which of these numbers divides exactly by 3? (a) 1269 (b) 6629 (c) 9752 (d) 8422
  30. 30.Find the LCM of 7 and 9.
  31. 31.If 8 mangoes cost ₹64, how much do 5 mangoes cost (in ₹)?
  32. 32.What percent of 500 is 315?
  33. 33.What percent of 400 is 196?
  34. 34.Which of these numbers divides exactly by 9? (a) 7052 (b) 3329 (c) 3087 (d) 1729
  35. 35.If 5 notebooks cost ₹140, how much do 17 notebooks cost (in ₹)?
  36. 36.Round 34269 to the nearest thousand.
  37. 37.120% of a number is 180. What is the number?
  38. 38.2 painters can paint a school in 15 days. How many days would 6 painters take, working at the same speed?
  39. 39.A car goes 180 km on 10 litres of petrol. How far can it go on 23 litres (in km)?
  40. 40.The HCF of two numbers is 4 and their LCM is 168. One of the numbers is 28. What is the other number?

Answer key

  1. 48
  2. 2
  3. 7
  4. 97
  5. 11.63
  6. 20
  7. 30
  8. 7112
  9. 168
  10. 40
  11. 6
  12. 37/84
  13. 12
  14. 40000
  15. 28
  16. 81
  17. 13/30
  18. 64
  19. 8667
  20. 104
  21. 90
  22. 36.8
  23. 2/3
  24. 600
  25. 66
  26. 1300
  27. 8
  28. 10
  29. 1269
  30. 63
  31. 40
  32. 63
  33. 49
  34. 3087
  35. 476
  36. 34000
  37. 150
  38. 5
  39. 414
  40. 24

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