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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 146 · 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 the smallest number you must add to 161 so that it divides exactly by 4?
  2. 2.Which is closest to 601 + 97 + 699? (a) 1600 (b) 1500 (c) 1300 (d) 1400
  3. 3.The HCF of two numbers is 9 and their LCM is 216. One of the numbers is 72. What is the other number?
  4. 4.What is 1/2 of 24 students?
  5. 5.Divide ₹572 between Kabir and Rohan in the ratio 9 : 2. How much does Rohan get (in ₹)?
  6. 6.What is 30% of 240?
  7. 7.Find the HCF of 20 and 70.
  8. 8.Find the LCM of 3, 2 and 6.
  9. 9.Find the third proportional to 8 and 32 (that is, 8 : 32 = 32 : ?).
  10. 10.8 painters can paint a school in 11 days. How many days would 2 painters take, working at the same speed?
  11. 11.What is 3/5 of 30 kg?
  12. 12.The HCF of two numbers is 5 and their LCM is 75. One of the numbers is 15. What is the other number?
  13. 13.6 × (18 − 2) + 44 ÷ 4 =
  14. 14.What is the smallest number you must add to 557 so that it divides exactly by 4?
  15. 15.Divide ₹612 between Kabir and Meera in the ratio 9 : 8. How much does Meera get (in ₹)?
  16. 16.7 : 5 = 21 : ?
  17. 17.Which is closest to 497 × 39? (Round each number first.) (a) 2000 (b) 200000 (c) 40000 (d) 20000
  18. 18.If 6 kg of rice costs ₹186, how many kg can you buy for ₹310?
  19. 19.What percent of 400 is 16?
  20. 20.2 painters can paint a school in 23 days. How many days would 23 painters take, working at the same speed?
  21. 21.Find the smallest number bigger than 15 that leaves a remainder of 4 when divided by 6, 5 or 15.
  22. 22.(16 + 5) × 9 − 9 =
  23. 23.3/4 − 3/8 =
  24. 24.What is 5% of 560?
  25. 25.How many factors does 92 have?
  26. 26.A hall floor is 360 cm long and 135 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  27. 27.Rohan takes 40 seconds and Meera 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?
  28. 28.5.5 × 4 =
  29. 29.25% of a number is 47. What is the number?
  30. 30.4/5 × 6/10 =
  31. 31.The HCF of two numbers is 8 and their LCM is 280. One of the numbers is 40. What is the other number?
  32. 32.How many factors does 62 have?
  33. 33.Divide ₹429 between Arjun and Aarav in the ratio 3 : 8. How much does Aarav get (in ₹)?
  34. 34.Round 53.48 to one decimal place. =
  35. 35.Three temple bells ring every 8, 10 and 30 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  36. 36.Tara takes 72 seconds and Saanvi 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?
  37. 37.Find the LCM of 28 and 32.
  38. 38.What percent of 40 is 34?
  39. 39.Divide ₹35 between Ananya and Arjun in the ratio 5 : 2. How much does Ananya get (in ₹)?
  40. 40.Which is closest to 906 ÷ 29? (a) 300 (b) 30 (c) 15 (d) 60

Answer key

  1. 3
  2. 1400
  3. 27
  4. 12
  5. 104
  6. 72
  7. 10
  8. 6
  9. 128
  10. 44
  11. 18
  12. 25
  13. 107
  14. 3
  15. 288
  16. 15
  17. 20000
  18. 10
  19. 4
  20. 2
  21. 34
  22. 180
  23. 3/8
  24. 28
  25. 6
  26. 24
  27. 360
  28. 22
  29. 188
  30. 12/25
  31. 56
  32. 4
  33. 312
  34. 53.5
  35. 120
  36. 360
  37. 224
  38. 85
  39. 25
  40. 30

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