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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 287 · 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.Meera takes 30 seconds and Manav takes 54 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?
  2. 2.How many factors does 17 have?
  3. 3.If 7 kg of rice costs ₹427, how many kg can you buy for ₹488?
  4. 4.1/2 of 10 + 3 × 5 =
  5. 5.If 5 kg of rice costs ₹165, how many kg can you buy for ₹363?
  6. 6.The HCF of two numbers is 6 and their LCM is 84. One of the numbers is 12. What is the other number?
  7. 7.28 − 15 ÷ 5 × 8 =
  8. 8.(16 + 19) × 7 − 10 =
  9. 9.40% of a number is 8. What is the number?
  10. 10.How many factors does 71 have?
  11. 11.Which of these numbers divides exactly by 4? (a) 1446 (b) 2251 (c) 1172 (d) 6786
  12. 12.Divide ₹480 between Karan and Dev in the ratio 8 : 7. How much does Dev get (in ₹)?
  13. 13.How many factors does 63 have?
  14. 14.75% of a number is 159. What is the number?
  15. 15.Which is closest to 603 × 18? (Round each number first.) (a) 120000 (b) 24000 (c) 1200 (d) 12000
  16. 16.5 × (12 − 9) + 42 ÷ 6 =
  17. 17.If 5 kg of rice costs ₹315, how many kg can you buy for ₹819?
  18. 18.A car goes 38 km on 2 litres of petrol. How far can it go on 27 litres (in km)?
  19. 19.What is the smallest number you must take away from 265 so that it divides exactly by 3?
  20. 20.9.02 + 4.9 =
  21. 21.What is 2/5 of 145 km?
  22. 22.Find the LCM of 30 and 24.
  23. 23.How many factors does 62 have?
  24. 24.How many factors does 34 have?
  25. 25.If 3 kg of rice costs ₹201, how many kg can you buy for ₹335?
  26. 26.Round 36.38 to one decimal place. =
  27. 27.Aditya takes 45 seconds and Kavya takes 36 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?
  28. 28.2/3 − 3/5 =
  29. 29.If 8 notebooks cost ₹376, how much do 2 notebooks cost (in ₹)?
  30. 30.The HCF of two numbers is 3 and their LCM is 189. One of the numbers is 21. What is the other number?
  31. 31.Find the smallest number bigger than 8 that leaves a remainder of 1 when divided by 8, 6 or 4.
  32. 32.Round 62.84 to one decimal place. =
  33. 33.20% of a number is 106. What is the number?
  34. 34.4.22 + 5.7 =
  35. 35.Find the LCM of 4, 8 and 10.
  36. 36.Which is closest to 794 ÷ 21? (a) 20 (b) 80 (c) 40 (d) 400
  37. 37.Round 89950 to the nearest thousand.
  38. 38.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 12, 6 or 3.
  39. 39.Two tanks hold 250 litres and 300 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  40. 40.What percent of 25 is 13?

Answer key

  1. 270
  2. 2
  3. 8
  4. 20
  5. 11
  6. 42
  7. 4
  8. 235
  9. 20
  10. 2
  11. 1172
  12. 224
  13. 6
  14. 212
  15. 12000
  16. 22
  17. 13
  18. 513
  19. 1
  20. 13.92
  21. 58
  22. 120
  23. 4
  24. 4
  25. 5
  26. 36.4
  27. 180
  28. 1/15
  29. 94
  30. 27
  31. 25
  32. 62.8
  33. 530
  34. 9.92
  35. 40
  36. 40
  37. 90000
  38. 13
  39. 50
  40. 52

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