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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 539 · 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 is 1/2 of 22 km?
  2. 2.What is 40% of 230?
  3. 3.Which is closest to 1999 ÷ 41? (a) 25 (b) 500 (c) 100 (d) 50
  4. 4.Which is closest to 697 × 50? (Round each number first.) (a) 35000 (b) 70000 (c) 350000 (d) 3500
  5. 5.Three temple bells ring every 4, 20 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  6. 6.How many factors does 13 have?
  7. 7.A hall floor is 315 cm long and 180 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  8. 8.5/6 + 3/7 =
  9. 9.2/8 + 6/11 =
  10. 10.4/6 − 1/3 =
  11. 11.Rohan takes 60 seconds and Rahul 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?
  12. 12.Aditya takes 45 seconds and Meera takes 75 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?
  13. 13.If 9 notebooks cost ₹234, how much do 18 notebooks cost (in ₹)?
  14. 14.What percent of 50 is 32?
  15. 15.Divide ₹190 between Vivaan and Diya in the ratio 3 : 7. How much does Diya get (in ₹)?
  16. 16.A car goes 288 km on 12 litres of petrol. How far can it go on 30 litres (in km)?
  17. 17.If 2 kg of rice costs ₹54, how many kg can you buy for ₹378?
  18. 18.Divide ₹638 between Kavya and Karan in the ratio 8 : 3. How much does Kavya get (in ₹)?
  19. 19.What is 6/7 of ₹105?
  20. 20.How many factors does 44 have?
  21. 21.Divide ₹275 between Kabir and Priya in the ratio 6 : 5. How much does Kabir get (in ₹)?
  22. 22.Which of these numbers divides exactly by 11? (a) 2970 (b) 6630 (c) 7336 (d) 6736
  23. 23.What is 30% of 80?
  24. 24.What is the smallest number you must add to 688 so that it divides exactly by 13?
  25. 25.Ishaan takes 60 seconds and Tara takes 80 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?
  26. 26.If 12 notebooks cost ₹492, how much do 19 notebooks cost (in ₹)?
  27. 27.Find the LCM of 5 and 8.
  28. 28.Round 90.06 to one decimal place. =
  29. 29.1/2 of 6 + 6 × 4 =
  30. 30.Divide ₹392 between Dev and Kabir in the ratio 1 : 6. How much does Kabir get (in ₹)?
  31. 31.(20 + 14) × 5 − 8 =
  32. 32.Find the LCM of 54 and 24.
  33. 33.What is 3/5 of 70 km?
  34. 34.The HCF of two numbers is 8 and their LCM is 96. One of the numbers is 24. What is the other number?
  35. 35.What is 80% of 360?
  36. 36.6.24 + 9.8 =
  37. 37.1/2 × 3/4 =
  38. 38.Three temple bells ring every 20, 30 and 24 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  39. 39.Round 34.43 to one decimal place. =
  40. 40.What percent of 500 is 430?

Answer key

  1. 11
  2. 92
  3. 50
  4. 35000
  5. 60
  6. 2
  7. 28
  8. 53/42
  9. 35/44
  10. 1/3
  11. 360
  12. 225
  13. 468
  14. 64
  15. 133
  16. 720
  17. 14
  18. 464
  19. 90
  20. 6
  21. 150
  22. 2970
  23. 24
  24. 1
  25. 240
  26. 779
  27. 40
  28. 90.1
  29. 27
  30. 336
  31. 162
  32. 216
  33. 42
  34. 32
  35. 288
  36. 16.04
  37. 3/8
  38. 120
  39. 34.4
  40. 86

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