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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 870 · 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. 1.1/8 × 4/12 =
  2. 2.If 2 notebooks cost ₹30, how much do 18 notebooks cost (in ₹)?
  3. 3.Three temple bells ring every 24, 30 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  4. 4.4 painters can paint a school in 9 days. How many days would 6 painters take, working at the same speed?
  5. 5.The HCF of two numbers is 3 and their LCM is 45. One of the numbers is 15. What is the other number?
  6. 6.Write 19/20 as a percent.
  7. 7.Two tanks hold 10 litres and 25 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  8. 8.A car goes 72 km on 4 litres of petrol. How far can it go on 26 litres (in km)?
  9. 9.1/2 + 2/5 =
  10. 10.Two tanks hold 75 litres and 30 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  11. 11.Which is closest to 396 × 71? (Round each number first.) (a) 56000 (b) 2800 (c) 28000 (d) 280000
  12. 12.The ratio of boys to girls in a class is 2 : 7. There are 6 boys. How many girls are there?
  13. 13.A hostel has enough food for 2 students for 10 days. How many days will the same food last for 4 students?
  14. 14.(20 + 9) × 2 − 19 =
  15. 15.The ratio of boys to girls in a class is 1 : 2. There are 8 boys. How many girls are there?
  16. 16.If 2 kg of rice costs ₹166, how many kg can you buy for ₹581?
  17. 17.1/3 + 1/7 =
  18. 18.Which of these numbers divides exactly by 3? (a) 1596 (b) 1303 (c) 2851 (d) 5747
  19. 19.38 − 9 ÷ 3 × 8 =
  20. 20.Two tanks hold 450 litres and 350 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  21. 21.If 8 kg of rice costs ₹488, how many kg can you buy for ₹793?
  22. 22.Divide ₹392 between Priya and Saanvi in the ratio 4 : 3. How much does Priya get (in ₹)?
  23. 23.If 4 cricket balls cost ₹36, how much do 13 cricket balls cost (in ₹)?
  24. 24.Find the smallest number bigger than 9 that leaves a remainder of 1 when divided by 3, 9 or 5.
  25. 25.How many factors does 27 have?
  26. 26.32 + 7 × 5 − 25 =
  27. 27.Two tanks hold 200 litres and 120 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  28. 28.2/7 + 1/3 =
  29. 29.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?
  30. 30.2/3 of 27 + 7 × 5 =
  31. 31.How many factors does 100 have?
  32. 32.If 12 notebooks cost ₹96, how much do 10 notebooks cost (in ₹)?
  33. 33.A car goes 120 km on 10 litres of petrol. How far can it go on 35 litres (in km)?
  34. 34.56 ÷ 8 × 4 + 9 =
  35. 35.80% of a number is 100. What is the number?
  36. 36.A car goes 100 km on 10 litres of petrol. How far can it go on 3 litres (in km)?
  37. 37.If 8 kg of rice costs ₹680, how many kg can you buy for ₹255?
  38. 38.The ratio of boys to girls in a class is 1 : 2. There are 7 boys. How many girls are there?
  39. 39.What is the smallest number you must add to 893 so that it divides exactly by 4?
  40. 40.Find the LCM of 2, 4 and 12.

Answer key

  1. 1/24
  2. 270
  3. 120
  4. 6
  5. 9
  6. 95
  7. 5
  8. 468
  9. 9/10
  10. 15
  11. 28000
  12. 21
  13. 5
  14. 39
  15. 16
  16. 7
  17. 10/21
  18. 1596
  19. 14
  20. 50
  21. 13
  22. 224
  23. 117
  24. 46
  25. 4
  26. 42
  27. 40
  28. 13/21
  29. 10
  30. 53
  31. 9
  32. 80
  33. 420
  34. 37
  35. 125
  36. 30
  37. 3
  38. 14
  39. 3
  40. 12

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