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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 842 · 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.Write 33/50 as a percent.
  2. 2.Which of these numbers divides exactly by 3? (a) 8963 (b) 8239 (c) 4399 (d) 4320
  3. 3.Three temple bells ring every 15, 6 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  4. 4.Find the LCM of 27 and 24.
  5. 5.If 3 kg of rice costs ₹189, how many kg can you buy for ₹315?
  6. 6.Arjun scored 4 marks out of 20 in a test. What percentage did Arjun score?
  7. 7.Find the smallest number bigger than 9 that leaves a remainder of 1 when divided by 9, 6 or 3.
  8. 8.How many factors does 34 have?
  9. 9.Divide ₹56 between Manav and Kavya in the ratio 3 : 1. How much does Manav get (in ₹)?
  10. 10.The HCF of two numbers is 2 and their LCM is 60. One of the numbers is 12. What is the other number?
  11. 11.Write 21/25 as a percent.
  12. 12.A car goes 165 km on 11 litres of petrol. How far can it go on 17 litres (in km)?
  13. 13.If 3 kg of rice costs ₹225, how many kg can you buy for ₹150?
  14. 14.75% of a number is 99. What is the number?
  15. 15.The ratio of boys to girls in a class is 8 : 3. There are 80 boys. How many girls are there?
  16. 16.Which is closest to 98 + 896 + 395? (a) 1500 (b) 1300 (c) 1600 (d) 1400
  17. 17.Which is closest to 704 × 30? (Round each number first.) (a) 210000 (b) 2100 (c) 21000 (d) 42000
  18. 18.Three temple bells ring every 15, 24 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  19. 19.(14 + 11) × 5 − 3 =
  20. 20.If 8 bottles of juice cost ₹184, how much do 11 bottles of juice cost (in ₹)?
  21. 21.Find the LCM of 15 and 35.
  22. 22.Three temple bells ring every 18, 6 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  23. 23.2 : 8 = 6 : ?
  24. 24.Two tanks hold 30 litres and 75 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  25. 25.What percent of 20 is 1?
  26. 26.5% of a number is 7. What is the number?
  27. 27.Write 1/2 as a percent.
  28. 28.A car goes 144 km on 12 litres of petrol. How far can it go on 34 litres (in km)?
  29. 29.Find the LCM of 15, 8 and 5.
  30. 30.If 7 pens cost ₹196, how much do 18 pens cost (in ₹)?
  31. 31.Divide ₹182 between Ananya and Meera in the ratio 4 : 9. How much does Meera get (in ₹)?
  32. 32.Find the LCM of 8 and 7.
  33. 33.If 11 bottles of juice cost ₹308, how much do 8 bottles of juice cost (in ₹)?
  34. 34.Divide ₹354 between Isha and Saanvi in the ratio 5 : 1. How much does Saanvi get (in ₹)?
  35. 35.3/4 + 2/3 =
  36. 36.Which is closest to 405 + 202 + 804? (a) 1500 (b) 1300 (c) 1400 (d) 1600
  37. 37.What percent of 50 is 47?
  38. 38.Find the HCF of 30 and 48.
  39. 39.5 painters can paint a school in 30 days. How many days would 10 painters take, working at the same speed?
  40. 40.Find the LCM of 35 and 10.

Answer key

  1. 66
  2. 4320
  3. 30
  4. 216
  5. 5
  6. 20
  7. 19
  8. 4
  9. 42
  10. 10
  11. 84
  12. 255
  13. 2
  14. 132
  15. 30
  16. 1400
  17. 21000
  18. 120
  19. 122
  20. 253
  21. 105
  22. 72
  23. 24
  24. 15
  25. 5
  26. 140
  27. 50
  28. 408
  29. 120
  30. 504
  31. 126
  32. 56
  33. 224
  34. 59
  35. 17/12
  36. 1400
  37. 94
  38. 6
  39. 15
  40. 70

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