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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 880 · 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.Which is closest to 496 × 41? (Round each number first.) (a) 20000 (b) 2000 (c) 40000 (d) 200000
  2. 2.Which of these numbers divides exactly by 3? (a) 1553 (b) 9195 (c) 1685 (d) 1598
  3. 3.3.7 × 2 =
  4. 4.If 2 kg of rice costs ₹92, how many kg can you buy for ₹276?
  5. 5.Find the HCF of 21 and 6.
  6. 6.The HCF of two numbers is 4 and their LCM is 56. One of the numbers is 8. What is the other number?
  7. 7.What is 10% of 200?
  8. 8.A car goes 144 km on 6 litres of petrol. How far can it go on 14 litres (in km)?
  9. 9.1/2 × 7/8 =
  10. 10.40% of a number is 22. What is the number?
  11. 11.What is the smallest number you must take away from 679 so that it divides exactly by 4?
  12. 12.What is the smallest number you must take away from 106 so that it divides exactly by 13?
  13. 13.Three temple bells ring every 5, 20 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  14. 14.59 − 25 ÷ 5 × 6 =
  15. 15.Find the LCM of 7 and 4.
  16. 16.1.07 + 7.5 =
  17. 17.A car goes 108 km on 6 litres of petrol. How far can it go on 35 litres (in km)?
  18. 18.Isha takes 75 seconds and Rahul takes 30 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?
  19. 19.Divide ₹420 between Nisha and Ananya in the ratio 3 : 4. How much does Nisha get (in ₹)?
  20. 20.Find the smallest number bigger than 8 that leaves a remainder of 2 when divided by 6, 3 or 8.
  21. 21.4 : 2 = 12 : ?
  22. 22.If 9 notebooks cost ₹351, how much do 20 notebooks cost (in ₹)?
  23. 23.Find the smallest number bigger than 9 that leaves a remainder of 2 when divided by 6, 9 or 4.
  24. 24.If 7 erasers cost ₹21, how much do 18 erasers cost (in ₹)?
  25. 25.What is the smallest number you must add to 164 so that it divides exactly by 7?
  26. 26.How many factors does 67 have?
  27. 27.A hostel has enough food for 12 students for 26 days. How many days will the same food last for 8 students?
  28. 28.Find the HCF of 22 and 33.
  29. 29.What is 12% of 75?
  30. 30.6.86 + 5.3 =
  31. 31.A hall floor is 100 cm long and 60 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  32. 32.Two tanks hold 200 litres and 360 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  33. 33.A car goes 228 km on 12 litres of petrol. How far can it go on 38 litres (in km)?
  34. 34.If 4 kites cost ₹72, how much do 16 kites cost (in ₹)?
  35. 35.3 : 4 = 12 : ?
  36. 36.(16 + 3) × 5 − 1 =
  37. 37.5 : 15 = 15 : ?
  38. 38.6.1 × 5 =
  39. 39.Find the LCM of 14 and 10.
  40. 40.8.2 × 3 =

Answer key

  1. 20000
  2. 9195
  3. 7.4
  4. 6
  5. 3
  6. 28
  7. 20
  8. 336
  9. 7/16
  10. 55
  11. 3
  12. 2
  13. 60
  14. 29
  15. 28
  16. 8.57
  17. 630
  18. 150
  19. 180
  20. 26
  21. 6
  22. 780
  23. 38
  24. 54
  25. 4
  26. 2
  27. 39
  28. 11
  29. 9
  30. 12.16
  31. 15
  32. 40
  33. 722
  34. 288
  35. 16
  36. 94
  37. 45
  38. 30.5
  39. 70
  40. 24.6

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