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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 525 · 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.Write 1/2 as a percent.
  2. 2.Divide ₹440 between Aditya and Tara in the ratio 2 : 9. How much does Tara get (in ₹)?
  3. 3.25 + 6 × 5 − 21 =
  4. 4.Rohan scored 2 marks out of 20 in a test. What percentage did Rohan score?
  5. 5.A hostel has enough food for 4 students for 12 days. How many days will the same food last for 16 students?
  6. 6.Find the LCM of 10 and 35.
  7. 7.What is 120% of 220?
  8. 8.Write 27/50 as a percent.
  9. 9.Find the LCM of 20 and 28.
  10. 10.5.6 ÷ 4 =
  11. 11.Which of these numbers divides exactly by 3? (a) 5345 (b) 4085 (c) 8871 (d) 2488
  12. 12.Three temple bells ring every 5, 6 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  13. 13.The HCF of two numbers is 8 and their LCM is 224. One of the numbers is 56. What is the other number?
  14. 14.Farhan takes 90 seconds and Aditya takes 36 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?
  15. 15.The ratio of boys to girls in a class is 3 : 7. There are 30 boys. How many girls are there?
  16. 16.1/2 of 8 + 5 × 6 =
  17. 17.31 − 42 ÷ 7 × 3 =
  18. 18.Nisha scored 12 marks out of 40 in a test. What percentage did Nisha score?
  19. 19.What is the smallest number you must take away from 613 so that it divides exactly by 11?
  20. 20.Find the LCM of 15, 12 and 2.
  21. 21.Find the LCM of 45 and 35.
  22. 22.Divide ₹392 between Dev and Kavya in the ratio 3 : 4. How much does Dev get (in ₹)?
  23. 23.If 11 mangoes cost ₹352, how much do 10 mangoes cost (in ₹)?
  24. 24.(13 + 18) × 9 − 30 =
  25. 25.9.04 + 1.6 =
  26. 26.(6 + 6) × 3 − 14 =
  27. 27.Meera scored 72 marks out of 80 in a test. What percentage did Meera score?
  28. 28.What is the smallest number you must add to 178 so that it divides exactly by 11?
  29. 29.What is the smallest number you must take away from 751 so that it divides exactly by 3?
  30. 30.6 painters can paint a school in 5 days. How many days would 5 painters take, working at the same speed?
  31. 31.Which is closest to 699 × 69? (Round each number first.) (a) 98000 (b) 490000 (c) 49000 (d) 4900
  32. 32.How many factors does 56 have?
  33. 33.1/2 + 8/11 =
  34. 34.48 − 6 ÷ 3 × 5 =
  35. 35.Find the LCM of 4, 2 and 10.
  36. 36.Which is closest to 199 × 78? (Round each number first.) (a) 16000 (b) 32000 (c) 160000 (d) 1600
  37. 37.23.1 ÷ 7 =
  38. 38.Find the HCF of 40 and 48.
  39. 39.Three temple bells ring every 4, 20 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  40. 40.What is the smallest number you must take away from 293 so that it divides exactly by 4?

Answer key

  1. 50
  2. 360
  3. 34
  4. 10
  5. 3
  6. 70
  7. 264
  8. 54
  9. 140
  10. 1.4
  11. 8871
  12. 30
  13. 32
  14. 180
  15. 70
  16. 34
  17. 13
  18. 30
  19. 8
  20. 60
  21. 315
  22. 168
  23. 320
  24. 249
  25. 10.64
  26. 22
  27. 90
  28. 9
  29. 1
  30. 6
  31. 49000
  32. 8
  33. 27/22
  34. 38
  35. 20
  36. 16000
  37. 3.3
  38. 8
  39. 40
  40. 1

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