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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 912 · 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.What percent of 500 is 10?
  2. 2.A car goes 63 km on 7 litres of petrol. How far can it go on 17 litres (in km)?
  3. 3.If 3 erasers cost ₹48, how much do 14 erasers cost (in ₹)?
  4. 4.48 ÷ 6 × 4 + 18 =
  5. 5.A car goes 57 km on 3 litres of petrol. How far can it go on 11 litres (in km)?
  6. 6.What is the smallest number you must add to 842 so that it divides exactly by 13?
  7. 7.A car goes 120 km on 12 litres of petrol. How far can it go on 19 litres (in km)?
  8. 8.A car goes 55 km on 5 litres of petrol. How far can it go on 6 litres (in km)?
  9. 9.If 2 erasers cost ₹86, how much do 16 erasers cost (in ₹)?
  10. 10.What is the smallest number you must add to 648 so that it divides exactly by 13?
  11. 11.How many factors does 63 have?
  12. 12.Round 58.06 to one decimal place. =
  13. 13.Find the LCM of 45 and 25.
  14. 14.Find the third proportional to 4 and 20 (that is, 4 : 20 = 20 : ?).
  15. 15.What is 2/3 of 75 students?
  16. 16.Find the LCM of 4, 15 and 8.
  17. 17.8.3 × 9 =
  18. 18.Two tanks hold 45 litres and 10 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  19. 19.A hall floor is 150 cm long and 125 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  20. 20.50% of a number is 87. What is the number?
  21. 21.Two tanks hold 20 litres and 90 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  22. 22.If 12 notebooks cost ₹528, how much do 16 notebooks cost (in ₹)?
  23. 23.If 4 mangoes cost ₹116, how much do 10 mangoes cost (in ₹)?
  24. 24.A hostel has enough food for 12 students for 11 days. How many days will the same food last for 3 students?
  25. 25.The ratio of boys to girls in a class is 3 : 2. There are 21 boys. How many girls are there?
  26. 26.Find the LCM of 8, 3 and 4.
  27. 27.The ratio of boys to girls in a class is 4 : 3. There are 8 boys. How many girls are there?
  28. 28.Divide ₹155 between Kabir and Karan in the ratio 2 : 3. How much does Kabir get (in ₹)?
  29. 29.The HCF of two numbers is 4 and their LCM is 168. One of the numbers is 28. What is the other number?
  30. 30.If 8 pencil boxes cost ₹224, how much do 4 pencil boxes cost (in ₹)?
  31. 31.Find the HCF of 30 and 75.
  32. 32.What is the smallest number you must add to 247 so that it divides exactly by 11?
  33. 33.Three temple bells ring every 9, 15 and 18 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  34. 34.9.8 × 5 =
  35. 35.Find the smallest number bigger than 9 that leaves a remainder of 2 when divided by 3, 9 or 4.
  36. 36.Which of these numbers divides exactly by 4? (a) 1436 (b) 2502 (c) 1210 (d) 1199
  37. 37.3 : 4 = 18 : ?
  38. 38.What is 2/5 of ₹55?
  39. 39.What is 2/5 of 45 litres?
  40. 40.A car goes 204 km on 12 litres of petrol. How far can it go on 31 litres (in km)?

Answer key

  1. 2
  2. 153
  3. 224
  4. 50
  5. 209
  6. 3
  7. 190
  8. 66
  9. 688
  10. 2
  11. 6
  12. 58.1
  13. 225
  14. 100
  15. 50
  16. 120
  17. 74.7
  18. 5
  19. 30
  20. 174
  21. 10
  22. 704
  23. 290
  24. 44
  25. 14
  26. 24
  27. 6
  28. 62
  29. 24
  30. 112
  31. 15
  32. 6
  33. 90
  34. 49
  35. 38
  36. 1436
  37. 24
  38. 22
  39. 18
  40. 527

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