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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 942 · 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.How many factors does 91 have?
  2. 2.Find the third proportional to 2 and 10 (that is, 2 : 10 = 10 : ?).
  3. 3.(19 + 13) × 2 − 6 =
  4. 4.Which of these numbers divides exactly by 6? (a) 9983 (b) 7639 (c) 2724 (d) 5019
  5. 5.What is 50% of 506?
  6. 6.10% of a number is 5. What is the number?
  7. 7.4 painters can paint a school in 17 days. How many days would 17 painters take, working at the same speed?
  8. 8.47 − 20 ÷ 4 × 8 =
  9. 9.Find the LCM of 20 and 24.
  10. 10.A car goes 76 km on 4 litres of petrol. How far can it go on 13 litres (in km)?
  11. 11.Which of these numbers divides exactly by 4? (a) 9077 (b) 9374 (c) 3618 (d) 2668
  12. 12.How many factors does 27 have?
  13. 13.Farhan scored 28 marks out of 40 in a test. What percentage did Farhan score?
  14. 14.9 : 2 = 36 : ?
  15. 15.Find the LCM of 10 and 6.
  16. 16.A hostel has enough food for 7 students for 21 days. How many days will the same food last for 21 students?
  17. 17.Two tanks hold 10 litres and 15 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  18. 18.2/7 of 84 + 7 × 3 =
  19. 19.Which is closest to 2096 ÷ 31? (a) 700 (b) 140 (c) 70 (d) 35
  20. 20.Diya scored 34 marks out of 40 in a test. What percentage did Diya score?
  21. 21.The HCF of two numbers is 7 and their LCM is 196. One of the numbers is 28. What is the other number?
  22. 22.Isha takes 90 seconds and Meera takes 50 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?
  23. 23.Round 89.84 to one decimal place. =
  24. 24.The ratio of boys to girls in a class is 9 : 2. There are 63 boys. How many girls are there?
  25. 25.9/12 × 2/11 =
  26. 26.Three temple bells ring every 15, 5 and 24 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  27. 27.Round 24133 to the nearest hundred.
  28. 28.Two tanks hold 270 litres and 150 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  29. 29.Three temple bells ring every 5, 6 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  30. 30.Round 63.48 to one decimal place. =
  31. 31.Find the third proportional to 3 and 15 (that is, 3 : 15 = 15 : ?).
  32. 32.What is the smallest number you must take away from 237 so that it divides exactly by 9?
  33. 33.3/4 × 1/9 =
  34. 34.If 5 kg of rice costs ₹355, how many kg can you buy for ₹284?
  35. 35.Isha scored 12 marks out of 50 in a test. What percentage did Isha score?
  36. 36.The HCF of two numbers is 3 and their LCM is 54. One of the numbers is 6. What is the other number?
  37. 37.Find the LCM of 4, 5 and 8.
  38. 38.If 12 notebooks cost ₹360, how much do 6 notebooks cost (in ₹)?
  39. 39.What is the smallest number you must add to 163 so that it divides exactly by 4?
  40. 40.Divide ₹145 between Zoya and Tara in the ratio 1 : 4. How much does Tara get (in ₹)?

Answer key

  1. 4
  2. 50
  3. 58
  4. 2724
  5. 253
  6. 50
  7. 4
  8. 7
  9. 120
  10. 247
  11. 2668
  12. 4
  13. 70
  14. 8
  15. 30
  16. 7
  17. 5
  18. 45
  19. 70
  20. 85
  21. 49
  22. 450
  23. 89.8
  24. 14
  25. 3/22
  26. 120
  27. 24100
  28. 30
  29. 60
  30. 63.5
  31. 75
  32. 3
  33. 1/12
  34. 4
  35. 24
  36. 27
  37. 40
  38. 180
  39. 1
  40. 116

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