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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 43 · 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.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 4, 12 or 15.
  2. 2.(15 + 18) × 2 − 2 =
  3. 3.What is 7/9 of 225 students?
  4. 4.Which of these numbers divides exactly by 8? (a) 5208 (b) 4069 (c) 1797 (d) 2835
  5. 5.Tara scored 49 marks out of 50 in a test. What percentage did Tara score?
  6. 6.The HCF of two numbers is 3 and their LCM is 45. One of the numbers is 9. What is the other number?
  7. 7.The ratio of boys to girls in a class is 6 : 1. There are 42 boys. How many girls are there?
  8. 8.The HCF of two numbers is 3 and their LCM is 120. One of the numbers is 15. What is the other number?
  9. 9.How many factors does 18 have?
  10. 10.Which is closest to 100 + 795 + 702? (a) 1600 (b) 1700 (c) 1800 (d) 1500
  11. 11.1.78 + 1.8 =
  12. 12.If 9 pens cost ₹45, how much do 19 pens cost (in ₹)?
  13. 13.If 7 notebooks cost ₹28, how much do 14 notebooks cost (in ₹)?
  14. 14.Round 34.73 to one decimal place. =
  15. 15.Karan takes 40 seconds and Ishaan takes 60 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.If 11 cricket balls cost ₹363, how much do 7 cricket balls cost (in ₹)?
  17. 17.Which of these numbers divides exactly by 9? (a) 7550 (b) 3754 (c) 2520 (d) 8390
  18. 18.Find the LCM of 8 and 12.
  19. 19.40 − 36 ÷ 9 × 2 =
  20. 20.Find the HCF of 18 and 45.
  21. 21.How many factors does 33 have?
  22. 22.Three temple bells ring every 5, 12 and 30 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  23. 23.Which is closest to 204 + 98 + 704? (a) 900 (b) 1200 (c) 1000 (d) 1100
  24. 24.(13 + 5) × 9 − 28 =
  25. 25.Which is closest to 305 + 205 + 604? (a) 1200 (b) 1000 (c) 1300 (d) 1100
  26. 26.Divide ₹66 between Isha and Kavya in the ratio 1 : 2. How much does Kavya get (in ₹)?
  27. 27.Divide ₹224 between Saanvi and Ishaan in the ratio 5 : 9. How much does Saanvi get (in ₹)?
  28. 28.Divide ₹33 between Saanvi and Kabir in the ratio 1 : 2. How much does Saanvi get (in ₹)?
  29. 29.Find the HCF of 60 and 105.
  30. 30.Divide ₹611 between Priya and Rohan in the ratio 5 : 8. How much does Rohan get (in ₹)?
  31. 31.Find the third proportional to 9 and 36 (that is, 9 : 36 = 36 : ?).
  32. 32.What is the smallest number you must take away from 943 so that it divides exactly by 8?
  33. 33.19.2 ÷ 3 =
  34. 34.Which of these numbers divides exactly by 9? (a) 3803 (b) 1395 (c) 6987 (d) 6387
  35. 35.(6 + 12) × 8 − 21 =
  36. 36.Find the HCF of 65 and 91.
  37. 37.A hall floor is 350 cm long and 100 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  38. 38.The ratio of boys to girls in a class is 5 : 8. There are 30 boys. How many girls are there?
  39. 39.10 painters can paint a school in 5 days. How many days would 5 painters take, working at the same speed?
  40. 40.A hall floor is 75 cm long and 50 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?

Answer key

  1. 61
  2. 64
  3. 175
  4. 5208
  5. 98
  6. 15
  7. 7
  8. 24
  9. 6
  10. 1600
  11. 3.58
  12. 95
  13. 56
  14. 34.7
  15. 120
  16. 231
  17. 2520
  18. 24
  19. 32
  20. 9
  21. 4
  22. 60
  23. 1000
  24. 134
  25. 1100
  26. 44
  27. 80
  28. 11
  29. 15
  30. 376
  31. 144
  32. 7
  33. 6.4
  34. 1395
  35. 123
  36. 13
  37. 14
  38. 48
  39. 10
  40. 6

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