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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 811 · 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 ₹560 between Rahul and Isha in the ratio 1 : 9. How much does Rahul get (in ₹)?
  2. 2.Two tanks hold 90 litres and 120 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  3. 3.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 15, 6 or 9.
  4. 4.What is 10% of 240?
  5. 5.Manav takes 80 seconds and Meera takes 48 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?
  6. 6.If 9 kg of rice costs ₹603, how many kg can you buy for ₹737?
  7. 7.Three temple bells ring every 30, 20 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  8. 8.A car goes 144 km on 6 litres of petrol. How far can it go on 29 litres (in km)?
  9. 9.Which is closest to 4502 ÷ 49? (a) 900 (b) 90 (c) 180 (d) 45
  10. 10.27 ÷ 3 × 4 + 1 =
  11. 11.Meera scored 38 marks out of 50 in a test. What percentage did Meera score?
  12. 12.36 − 48 ÷ 8 × 4 =
  13. 13.Divide ₹308 between Ananya and Arjun in the ratio 2 : 9. How much does Ananya get (in ₹)?
  14. 14.Which is closest to 597 × 19? (Round each number first.) (a) 1200 (b) 24000 (c) 12000 (d) 120000
  15. 15.A hall floor is 210 cm long and 60 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  16. 16.A car goes 40 km on 5 litres of petrol. How far can it go on 16 litres (in km)?
  17. 17.21 ÷ 7 × 9 + 25 =
  18. 18.(10 + 7) × 2 − 24 =
  19. 19.Three temple bells ring every 6, 8 and 30 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  20. 20.Find the HCF of 16 and 12.
  21. 21.6/8 − 2/9 =
  22. 22.How many factors does 41 have?
  23. 23.A hall floor is 270 cm long and 225 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  24. 24.Saanvi scored 16 marks out of 25 in a test. What percentage did Saanvi score?
  25. 25.2/7 + 7/9 =
  26. 26.Round 10.41 to one decimal place. =
  27. 27.3 painters can paint a school in 30 days. How many days would 5 painters take, working at the same speed?
  28. 28.Which is closest to 704 × 48? (Round each number first.) (a) 3500 (b) 350000 (c) 35000 (d) 70000
  29. 29.A hall floor is 420 cm long and 360 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  30. 30.Which is closest to 607 ÷ 21? (a) 60 (b) 300 (c) 15 (d) 30
  31. 31.Round 20.86 to one decimal place. =
  32. 32.Find the third proportional to 2 and 6 (that is, 2 : 6 = 6 : ?).
  33. 33.Round 11053 to the nearest thousand.
  34. 34.52 ÷ 8 =
  35. 35.Two tanks hold 30 litres and 135 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  36. 36.Which is closest to 4507 ÷ 49? (a) 90 (b) 180 (c) 900 (d) 45
  37. 37.Find the LCM of 4, 3 and 13.
  38. 38.8 × (29 − 16) + 25 ÷ 5 =
  39. 39.What percent of 250 is 165?
  40. 40.What is the smallest number you must add to 731 so that it divides exactly by 13?

Answer key

  1. 56
  2. 30
  3. 91
  4. 24
  5. 240
  6. 11
  7. 60
  8. 696
  9. 90
  10. 37
  11. 76
  12. 12
  13. 56
  14. 12000
  15. 14
  16. 128
  17. 52
  18. 10
  19. 120
  20. 4
  21. 19/36
  22. 2
  23. 30
  24. 64
  25. 67/63
  26. 10.4
  27. 18
  28. 35000
  29. 42
  30. 30
  31. 20.9
  32. 18
  33. 11000
  34. 6.5
  35. 15
  36. 90
  37. 156
  38. 109
  39. 66
  40. 10

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