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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 976 · 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 LCM of 15 and 9.
  2. 2.Vivaan scored 32 marks out of 80 in a test. What percentage did Vivaan score?
  3. 3.A car goes 108 km on 12 litres of petrol. How far can it go on 32 litres (in km)?
  4. 4.What is 2/3 of ₹90?
  5. 5.A hall floor is 100 cm long and 80 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  6. 6.A hall floor is 300 cm long and 120 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  7. 7.If 8 kg of rice costs ₹280, how many kg can you buy for ₹385?
  8. 8.10/11 − 6/7 =
  9. 9.A hall floor is 80 cm long and 60 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  10. 10.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 12, 3 or 8.
  11. 11.Two tanks hold 80 litres and 60 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  12. 12.3/11 + 1/7 =
  13. 13.Three temple bells ring every 6, 5 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  14. 14.How many factors does 99 have?
  15. 15.150% of a number is 441. What is the number?
  16. 16.A hall floor is 240 cm long and 180 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  17. 17.75% of a number is 126. What is the number?
  18. 18.Sneha scored 17 marks out of 20 in a test. What percentage did Sneha score?
  19. 19.(10 + 5) × 5 − 30 =
  20. 20.75% of a number is 303. What is the number?
  21. 21.10 : 15 = 50 : ?
  22. 22.The HCF of two numbers is 2 and their LCM is 42. One of the numbers is 6. What is the other number?
  23. 23.Which is closest to 198 × 79? (Round each number first.) (a) 32000 (b) 160000 (c) 1600 (d) 16000
  24. 24.How many factors does 40 have?
  25. 25.If 9 kg of rice costs ₹225, how many kg can you buy for ₹175?
  26. 26.Which of these numbers divides exactly by 11? (a) 6227 (b) 5551 (c) 9119 (d) 1813
  27. 27.Find the smallest number bigger than 15 that leaves a remainder of 3 when divided by 12, 15 or 6.
  28. 28.What is 5/9 of 36 students?
  29. 29.If 11 bottles of juice cost ₹374, how much do 16 bottles of juice cost (in ₹)?
  30. 30.The HCF of two numbers is 2 and their LCM is 48. One of the numbers is 6. What is the other number?
  31. 31.Three temple bells ring every 30, 8 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  32. 32.Which is closest to 203 × 48? (Round each number first.) (a) 10000 (b) 100000 (c) 1000 (d) 20000
  33. 33.2/5 − 2/6 =
  34. 34.What is the smallest number you must take away from 552 so that it divides exactly by 11?
  35. 35.What is 30% of 10?
  36. 36.43 + 2 × 7 − 22 =
  37. 37.What is 1/2 of 48 litres?
  38. 38.What is 5% of 120?
  39. 39.5 × (17 − 15) + 22 ÷ 2 =
  40. 40.Find the HCF of 63 and 28.

Answer key

  1. 45
  2. 40
  3. 288
  4. 60
  5. 20
  6. 10
  7. 11
  8. 4/77
  9. 12
  10. 25
  11. 20
  12. 32/77
  13. 120
  14. 6
  15. 294
  16. 12
  17. 168
  18. 85
  19. 45
  20. 404
  21. 75
  22. 14
  23. 16000
  24. 8
  25. 7
  26. 9119
  27. 63
  28. 20
  29. 544
  30. 16
  31. 120
  32. 10000
  33. 1/15
  34. 2
  35. 3
  36. 35
  37. 24
  38. 6
  39. 21
  40. 7

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