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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 691 · 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 ₹754 between Saanvi and Tara in the ratio 4 : 9. How much does Saanvi get (in ₹)?
  2. 2.A car goes 66 km on 6 litres of petrol. How far can it go on 8 litres (in km)?
  3. 3.Two tanks hold 10 litres and 25 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  4. 4.If 6 erasers cost ₹72, how much do 3 erasers cost (in ₹)?
  5. 5.What is the smallest number you must add to 851 so that it divides exactly by 4?
  6. 6.If 9 kg of rice costs ₹405, how many kg can you buy for ₹180?
  7. 7.A hall floor is 350 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  8. 8.Three temple bells ring every 30, 24 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  9. 9.Find the HCF of 55 and 66.
  10. 10.Round 96266 to the nearest hundred.
  11. 11.5 : 9 = 45 : ?
  12. 12.What is the smallest number you must take away from 577 so that it divides exactly by 6?
  13. 13.Find the third proportional to 4 and 20 (that is, 4 : 20 = 20 : ?).
  14. 14.10 + 5 × 6 − 3 =
  15. 15.Round 76837 to the nearest ten.
  16. 16.What is 80% of 245?
  17. 17.What is 60% of 395?
  18. 18.Ishaan scored 12 marks out of 40 in a test. What percentage did Ishaan score?
  19. 19.A hostel has enough food for 4 students for 18 days. How many days will the same food last for 6 students?
  20. 20.Ishaan takes 48 seconds and Dev takes 60 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?
  21. 21.The HCF of two numbers is 6 and their LCM is 270. One of the numbers is 54. What is the other number?
  22. 22.What is the smallest number you must take away from 830 so that it divides exactly by 4?
  23. 23.2/7 − 2/8 =
  24. 24.9 × (10 − 7) + 22 ÷ 2 =
  25. 25.Find the smallest number bigger than 15 that leaves a remainder of 3 when divided by 5, 4 or 15.
  26. 26.Find the third proportional to 9 and 36 (that is, 9 : 36 = 36 : ?).
  27. 27.Two tanks hold 160 litres and 120 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  28. 28.A hostel has enough food for 6 students for 4 days. How many days will the same food last for 4 students?
  29. 29.What is the smallest number you must add to 609 so that it divides exactly by 11?
  30. 30.Two tanks hold 40 litres and 90 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  31. 31.A hostel has enough food for 7 students for 9 days. How many days will the same food last for 3 students?
  32. 32.If 12 erasers cost ₹516, how much do 11 erasers cost (in ₹)?
  33. 33.Which is closest to 199 + 202 + 101? (a) 400 (b) 600 (c) 700 (d) 500
  34. 34.8.7 × 2 =
  35. 35.8.7 × 4 =
  36. 36.Find the HCF of 55 and 33.
  37. 37.Find the LCM of 5, 2 and 15.
  38. 38.39 − 28 ÷ 7 × 3 =
  39. 39.Meera scored 4 marks out of 20 in a test. What percentage did Meera score?
  40. 40.A car goes 51 km on 3 litres of petrol. How far can it go on 8 litres (in km)?

Answer key

  1. 232
  2. 88
  3. 5
  4. 36
  5. 1
  6. 4
  7. 21
  8. 120
  9. 11
  10. 96300
  11. 81
  12. 1
  13. 100
  14. 37
  15. 76840
  16. 196
  17. 237
  18. 30
  19. 12
  20. 240
  21. 30
  22. 2
  23. 1/28
  24. 38
  25. 63
  26. 144
  27. 40
  28. 6
  29. 7
  30. 10
  31. 21
  32. 473
  33. 500
  34. 17.4
  35. 34.8
  36. 11
  37. 30
  38. 27
  39. 20
  40. 136

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