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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 792 · 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. 1.80% of a number is 104. What is the number?
  2. 2.Which is closest to 197 + 104 + 698? (a) 1200 (b) 1000 (c) 1100 (d) 900
  3. 3.54 ÷ 9 × 6 + 14 =
  4. 4.If 11 notebooks cost ₹220, how much do 15 notebooks cost (in ₹)?
  5. 5.If 11 pens cost ₹627, how much do 18 pens cost (in ₹)?
  6. 6.A car goes 144 km on 12 litres of petrol. How far can it go on 9 litres (in km)?
  7. 7.What is the smallest number you must add to 921 so that it divides exactly by 8?
  8. 8.Find the HCF of 63 and 27.
  9. 9.What is the smallest number you must add to 445 so that it divides exactly by 7?
  10. 10.Which is closest to 3600 ÷ 41? (a) 180 (b) 900 (c) 45 (d) 90
  11. 11.If 12 cricket balls cost ₹228, how much do 2 cricket balls cost (in ₹)?
  12. 12.32 ÷ 4 × 2 + 24 =
  13. 13.5% of a number is 26. What is the number?
  14. 14.What is 120% of 150?
  15. 15.How many factors does 13 have?
  16. 16.2 painters can paint a school in 20 days. How many days would 20 painters take, working at the same speed?
  17. 17.What is the smallest number you must take away from 613 so that it divides exactly by 11?
  18. 18.If 5 kg of rice costs ₹280, how many kg can you buy for ₹112?
  19. 19.Tara takes 60 seconds and Nisha 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?
  20. 20.If 12 mangoes cost ₹72, how much do 8 mangoes cost (in ₹)?
  21. 21.1/3 of 24 + 3 × 8 =
  22. 22.If 3 notebooks cost ₹72, how much do 11 notebooks cost (in ₹)?
  23. 23.Write 21/50 as a percent.
  24. 24.45 + 12 × 7 − 8 =
  25. 25.The HCF of two numbers is 5 and their LCM is 105. One of the numbers is 35. What is the other number?
  26. 26.Round 14.74 to one decimal place. =
  27. 27.Three temple bells ring every 10, 9 and 30 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  28. 28.A hall floor is 350 cm long and 300 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  29. 29.Write 4/5 as a percent.
  30. 30.How many factors does 79 have?
  31. 31.Two tanks hold 40 litres and 180 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  32. 32.7 × (28 − 7) + 15 ÷ 5 =
  33. 33.A hall floor is 125 cm long and 50 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  34. 34.What is 1/3 of ₹27?
  35. 35.Which is closest to 793 ÷ 41? (a) 40 (b) 20 (c) 10 (d) 200
  36. 36.Which is closest to 397 × 28? (Round each number first.) (a) 120000 (b) 12000 (c) 24000 (d) 1200
  37. 37.How many factors does 58 have?
  38. 38.Which is closest to 795 + 199 + 198? (a) 1100 (b) 1400 (c) 1200 (d) 1300
  39. 39.The ratio of boys to girls in a class is 2 : 1. There are 20 boys. How many girls are there?
  40. 40.38 − 24 ÷ 4 × 6 =

Answer key

  1. 130
  2. 1000
  3. 50
  4. 300
  5. 1026
  6. 108
  7. 7
  8. 9
  9. 3
  10. 90
  11. 38
  12. 40
  13. 520
  14. 180
  15. 2
  16. 2
  17. 8
  18. 2
  19. 180
  20. 48
  21. 32
  22. 264
  23. 42
  24. 121
  25. 15
  26. 14.7
  27. 90
  28. 42
  29. 80
  30. 2
  31. 20
  32. 150
  33. 10
  34. 9
  35. 20
  36. 12000
  37. 4
  38. 1200
  39. 10
  40. 2

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