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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 690 · 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.Which of these numbers divides exactly by 9? (a) 5738 (b) 6271 (c) 3923 (d) 4653
  2. 2.Find the LCM of 3, 15 and 12.
  3. 3.Find the LCM of 3, 8 and 2.
  4. 4.A hall floor is 175 cm long and 100 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  5. 5.Round 52.47 to one decimal place. =
  6. 6.Which is closest to 296 + 604 + 603? (a) 1600 (b) 1500 (c) 1700 (d) 1400
  7. 7.Three temple bells ring every 5, 24 and 30 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  8. 8.5/7 − 1/9 =
  9. 9.A hall floor is 315 cm long and 270 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  10. 10.Round 94422 to the nearest hundred.
  11. 11.How many factors does 53 have?
  12. 12.2/3 of 6 + 8 × 5 =
  13. 13.Find the LCM of 7, 12 and 14.
  14. 14.Divide ₹330 between Nisha and Ananya in the ratio 7 : 4. How much does Ananya get (in ₹)?
  15. 15.If 5 kg of rice costs ₹185, how many kg can you buy for ₹481?
  16. 16.21 ÷ 7 × 4 + 17 =
  17. 17.3 × (28 − 6) + 72 ÷ 6 =
  18. 18.What is the smallest number you must take away from 214 so that it divides exactly by 9?
  19. 19.Find the third proportional to 4 and 16 (that is, 4 : 16 = 16 : ?).
  20. 20.What is the smallest number you must take away from 962 so that it divides exactly by 4?
  21. 21.Which is closest to 405 + 898 + 905? (a) 2200 (b) 2100 (c) 2300 (d) 2400
  22. 22.A car goes 48 km on 3 litres of petrol. How far can it go on 21 litres (in km)?
  23. 23.Aarav takes 54 seconds and Saanvi takes 72 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?
  24. 24.Kavya takes 90 seconds and Aditya takes 72 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?
  25. 25.How many factors does 22 have?
  26. 26.If 6 pencil boxes cost ₹240, how much do 18 pencil boxes cost (in ₹)?
  27. 27.Vivaan scored 36 marks out of 40 in a test. What percentage did Vivaan score?
  28. 28.If 8 kg of rice costs ₹632, how many kg can you buy for ₹474?
  29. 29.Dev takes 90 seconds and Vivaan 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?
  30. 30.42 + 2 × 10 − 24 =
  31. 31.Which is closest to 898 + 399 + 102? (a) 1300 (b) 1600 (c) 1400 (d) 1500
  32. 32.2/4 − 4/9 =
  33. 33.Find the LCM of 30 and 54.
  34. 34.What is 120% of 60?
  35. 35.Round 77.61 to one decimal place. =
  36. 36.70 ÷ 7 × 8 + 13 =
  37. 37.If 8 kites cost ₹336, how much do 9 kites cost (in ₹)?
  38. 38.36 ÷ 6 × 3 + 2 =
  39. 39.Divide ₹210 between Tara and Zoya in the ratio 5 : 2. How much does Tara get (in ₹)?
  40. 40.Find the HCF of 40 and 24.

Answer key

  1. 4653
  2. 60
  3. 24
  4. 28
  5. 52.5
  6. 1500
  7. 120
  8. 38/63
  9. 42
  10. 94400
  11. 2
  12. 44
  13. 84
  14. 120
  15. 13
  16. 29
  17. 78
  18. 7
  19. 64
  20. 2
  21. 2200
  22. 336
  23. 216
  24. 360
  25. 4
  26. 720
  27. 90
  28. 6
  29. 270
  30. 38
  31. 1400
  32. 1/18
  33. 270
  34. 72
  35. 77.6
  36. 93
  37. 378
  38. 20
  39. 150
  40. 8

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