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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 867 · 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.(16 + 17) × 9 − 2 =
  2. 2.Find the LCM of 9 and 6.
  3. 3.2/4 − 5/12 =
  4. 4.What is the smallest number you must add to 345 so that it divides exactly by 13?
  5. 5.The ratio of boys to girls in a class is 9 : 7. There are 72 boys. How many girls are there?
  6. 6.Find the smallest number bigger than 12 that leaves a remainder of 3 when divided by 12, 10 or 6.
  7. 7.What is 10% of 370?
  8. 8.Which is closest to 2992 ÷ 49? (a) 600 (b) 60 (c) 30 (d) 120
  9. 9.Three temple bells ring every 5, 4 and 24 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  10. 10.8 × (16 − 6) + 32 ÷ 8 =
  11. 11.Two tanks hold 40 litres and 45 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  12. 12.What is the smallest number you must add to 694 so that it divides exactly by 11?
  13. 13.Which is closest to 1600 ÷ 39? (a) 80 (b) 400 (c) 20 (d) 40
  14. 14.Karan takes 60 seconds and Kabir 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?
  15. 15.Write 43/50 as a percent.
  16. 16.If 4 kg of rice costs ₹356, how many kg can you buy for ₹534?
  17. 17.80% of a number is 32. What is the number?
  18. 18.A hall floor is 210 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  19. 19.Saanvi scored 33 marks out of 50 in a test. What percentage did Saanvi score?
  20. 20.A hostel has enough food for 2 students for 17 days. How many days will the same food last for 17 students?
  21. 21.12 + 5 × 2 − 7 =
  22. 22.The HCF of two numbers is 4 and their LCM is 24. One of the numbers is 8. What is the other number?
  23. 23.If 11 cricket balls cost ₹154, how much do 14 cricket balls cost (in ₹)?
  24. 24.Find the LCM of 5, 2 and 15.
  25. 25.Which is closest to 1194 ÷ 31? (a) 20 (b) 40 (c) 400 (d) 80
  26. 26.If 2 kg of rice costs ₹140, how many kg can you buy for ₹280?
  27. 27.Find the third proportional to 7 and 35 (that is, 7 : 35 = 35 : ?).
  28. 28.12 painters can paint a school in 29 days. How many days would 6 painters take, working at the same speed?
  29. 29.Isha scored 72 marks out of 80 in a test. What percentage did Isha score?
  30. 30.What is the smallest number you must add to 995 so that it divides exactly by 7?
  31. 31.Which is closest to 697 + 697 + 501? (a) 2100 (b) 2000 (c) 1800 (d) 1900
  32. 32.A hall floor is 300 cm long and 250 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  33. 33.7 × (16 − 2) + 45 ÷ 5 =
  34. 34.What is 30% of 340?
  35. 35.2 : 8 = 16 : ?
  36. 36.4/9 + 2/3 =
  37. 37.How many factors does 28 have?
  38. 38.Karan takes 54 seconds and Kavya takes 72 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?
  39. 39.Round 1286 to the nearest thousand.
  40. 40.What is 1/2 of 24 students?

Answer key

  1. 295
  2. 18
  3. 1/12
  4. 6
  5. 56
  6. 63
  7. 37
  8. 60
  9. 120
  10. 84
  11. 5
  12. 10
  13. 40
  14. 300
  15. 86
  16. 6
  17. 40
  18. 35
  19. 66
  20. 2
  21. 15
  22. 12
  23. 196
  24. 30
  25. 40
  26. 4
  27. 175
  28. 58
  29. 90
  30. 6
  31. 1900
  32. 30
  33. 107
  34. 102
  35. 64
  36. 10/9
  37. 6
  38. 216
  39. 1000
  40. 12

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