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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 180 · 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.Three temple bells ring every 12, 10 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  2. 2.8.1 × 7 =
  3. 3.Find the HCF of 35 and 25.
  4. 4.Divide ₹357 between Manav and Arjun in the ratio 1 : 6. How much does Arjun get (in ₹)?
  5. 5.65 − 63 ÷ 9 × 8 =
  6. 6.Which is closest to 297 × 21? (Round each number first.) (a) 600 (b) 6000 (c) 60000 (d) 12000
  7. 7.Which is closest to 399 × 39? (Round each number first.) (a) 16000 (b) 160000 (c) 32000 (d) 1600
  8. 8.2/9 of 81 + 6 × 9 =
  9. 9.What is 5% of 400?
  10. 10.Find the third proportional to 5 and 15 (that is, 5 : 15 = 15 : ?).
  11. 11.A hall floor is 175 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  12. 12.2.4 × 6 =
  13. 13.6.01 + 7.6 =
  14. 14.Three temple bells ring every 24, 4 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  15. 15.Vivaan takes 50 seconds and Dev takes 45 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?
  16. 16.30 − 21 ÷ 3 × 3 =
  17. 17.Find the third proportional to 6 and 12 (that is, 6 : 12 = 12 : ?).
  18. 18.4/7 − 4/10 =
  19. 19.Which of these numbers divides exactly by 3? (a) 2211 (b) 4855 (c) 1303 (d) 1858
  20. 20.4 × (13 − 8) + 24 ÷ 6 =
  21. 21.What is 10% of 160?
  22. 22.Divide ₹150 between Aarav and Rohan in the ratio 2 : 3. How much does Aarav get (in ₹)?
  23. 23.33 − 8 ÷ 4 × 4 =
  24. 24.If 9 kg of rice costs ₹531, how many kg can you buy for ₹118?
  25. 25.(13 + 13) × 2 − 5 =
  26. 26.Find the LCM of 6 and 7.
  27. 27.15 ÷ 2 =
  28. 28.Which is closest to 301 + 297 + 196? (a) 800 (b) 900 (c) 1000 (d) 700
  29. 29.1/2 + 3/4 =
  30. 30.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?
  31. 31.Find the HCF of 120 and 45.
  32. 32.15% of a number is 42. What is the number?
  33. 33.Two tanks hold 100 litres and 75 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  34. 34.Divide ₹195 between Ananya and Saanvi in the ratio 8 : 7. How much does Saanvi get (in ₹)?
  35. 35.10 + 8 × 3 − 10 =
  36. 36.(20 + 12) × 8 − 3 =
  37. 37.Find the HCF of 35 and 20.
  38. 38.Divide ₹406 between Farhan and Arjun in the ratio 5 : 2. How much does Arjun get (in ₹)?
  39. 39.Find the LCM of 13, 2 and 10.
  40. 40.A car goes 33 km on 3 litres of petrol. How far can it go on 4 litres (in km)?

Answer key

  1. 60
  2. 56.7
  3. 5
  4. 306
  5. 9
  6. 6000
  7. 16000
  8. 72
  9. 20
  10. 45
  11. 42
  12. 14.4
  13. 13.61
  14. 72
  15. 450
  16. 9
  17. 24
  18. 6/35
  19. 2211
  20. 24
  21. 16
  22. 60
  23. 25
  24. 2
  25. 47
  26. 42
  27. 7.5
  28. 800
  29. 5/4
  30. 42
  31. 15
  32. 280
  33. 25
  34. 91
  35. 24
  36. 253
  37. 5
  38. 116
  39. 130
  40. 44

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