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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 948 · 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. 1.37 − 16 ÷ 4 × 3 =
  2. 2.Vivaan scored 9 marks out of 50 in a test. What percentage did Vivaan score?
  3. 3.Find the LCM of 25 and 35.
  4. 4.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 5, 15 or 4.
  5. 5.How many factors does 92 have?
  6. 6.Find the third proportional to 9 and 36 (that is, 9 : 36 = 36 : ?).
  7. 7.If 10 pens cost ₹560, how much do 8 pens cost (in ₹)?
  8. 8.What is 75% of 156?
  9. 9.12 : 13 = 60 : ?
  10. 10.If 8 kg of rice costs ₹216, how many kg can you buy for ₹189?
  11. 11.A hostel has enough food for 2 students for 24 days. How many days will the same food last for 3 students?
  12. 12.Two tanks hold 120 litres and 210 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  13. 13.Find the LCM of 5, 12 and 6.
  14. 14.Three temple bells ring every 4, 24 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  15. 15.Find the HCF of 96 and 60.
  16. 16.What is the smallest number you must add to 214 so that it divides exactly by 4?
  17. 17.The HCF of two numbers is 4 and their LCM is 144. One of the numbers is 16. What is the other number?
  18. 18.Find the third proportional to 3 and 12 (that is, 3 : 12 = 12 : ?).
  19. 19.37.6 ÷ 8 =
  20. 20.(17 + 17) × 9 − 18 =
  21. 21.Which of these numbers divides exactly by 3? (a) 1177 (b) 9270 (c) 6551 (d) 5620
  22. 22.5% of a number is 8. What is the number?
  23. 23.3/4 + 1/12 =
  24. 24.If 3 kg of rice costs ₹114, how many kg can you buy for ₹152?
  25. 25.Divide ₹153 between Vivaan and Farhan in the ratio 8 : 1. How much does Vivaan get (in ₹)?
  26. 26.Kavya takes 30 seconds and Meera takes 80 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?
  27. 27.4/5 × 2/9 =
  28. 28.11 painters can paint a school in 14 days. How many days would 14 painters take, working at the same speed?
  29. 29.The HCF of two numbers is 7 and their LCM is 441. One of the numbers is 49. What is the other number?
  30. 30.2 : 4 = 10 : ?
  31. 31.The ratio of boys to girls in a class is 9 : 8. There are 54 boys. How many girls are there?
  32. 32.If 6 pens cost ₹36, how much do 3 pens cost (in ₹)?
  33. 33.A car goes 105 km on 7 litres of petrol. How far can it go on 27 litres (in km)?
  34. 34.6.9 × 2 =
  35. 35.Which is closest to 402 × 20? (Round each number first.) (a) 80000 (b) 8000 (c) 16000 (d) 800
  36. 36.Three temple bells ring every 10, 6 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  37. 37.If 8 bottles of juice cost ₹224, how much do 4 bottles of juice cost (in ₹)?
  38. 38.4.6 × 4 =
  39. 39.Write 9/20 as a percent.
  40. 40.Manav takes 80 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?

Answer key

  1. 25
  2. 18
  3. 175
  4. 62
  5. 6
  6. 144
  7. 448
  8. 117
  9. 65
  10. 7
  11. 16
  12. 30
  13. 60
  14. 72
  15. 12
  16. 2
  17. 36
  18. 48
  19. 4.7
  20. 288
  21. 9270
  22. 160
  23. 5/6
  24. 4
  25. 136
  26. 240
  27. 8/45
  28. 11
  29. 63
  30. 20
  31. 48
  32. 18
  33. 405
  34. 13.8
  35. 8000
  36. 90
  37. 112
  38. 18.4
  39. 45
  40. 720

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