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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 248 · 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.Rohan takes 45 seconds and Meera takes 48 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?
  2. 2.Divide ₹162 between Meera and Nisha in the ratio 5 : 1. How much does Meera get (in ₹)?
  3. 3.4.7 × 7 =
  4. 4.Which is closest to 202 × 62? (Round each number first.) (a) 1200 (b) 120000 (c) 12000 (d) 24000
  5. 5.How many factors does 43 have?
  6. 6.What is 15% of 540?
  7. 7.16 + 6 × 8 − 8 =
  8. 8.What is the smallest number you must add to 205 so that it divides exactly by 13?
  9. 9.(17 + 17) × 5 − 2 =
  10. 10.What is the smallest number you must add to 511 so that it divides exactly by 12?
  11. 11.Round 4405 to the nearest hundred.
  12. 12.What is the smallest number you must take away from 395 so that it divides exactly by 4?
  13. 13.How many factors does 80 have?
  14. 14.9 × (28 − 9) + 45 ÷ 5 =
  15. 15.A hall floor is 240 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  16. 16.A car goes 170 km on 10 litres of petrol. How far can it go on 22 litres (in km)?
  17. 17.10% of a number is 6. What is the number?
  18. 18.Which is closest to 696 + 695 + 202? (a) 1700 (b) 1800 (c) 1600 (d) 1500
  19. 19.Which of these numbers divides exactly by 11? (a) 8101 (b) 1052 (c) 3179 (d) 7154
  20. 20.Write 7/25 as a percent.
  21. 21.10 : 2 = 50 : ?
  22. 22.How many factors does 65 have?
  23. 23.Priya takes 50 seconds and Isha takes 45 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?
  24. 24.Find the smallest number bigger than 6 that leaves a remainder of 2 when divided by 6, 3 or 5.
  25. 25.Find the HCF of 9 and 12.
  26. 26.The HCF of two numbers is 3 and their LCM is 42. One of the numbers is 21. What is the other number?
  27. 27.8 painters can paint a school in 15 days. How many days would 4 painters take, working at the same speed?
  28. 28.Three temple bells ring every 15, 6 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  29. 29.Divide ₹176 between Arjun and Isha in the ratio 5 : 6. How much does Arjun get (in ₹)?
  30. 30.Round 11.57 to one decimal place. =
  31. 31.If 6 kg of rice costs ₹336, how many kg can you buy for ₹224?
  32. 32.6 ÷ 2 × 7 + 3 =
  33. 33.Which is closest to 1494 ÷ 31? (a) 500 (b) 50 (c) 100 (d) 25
  34. 34.If 4 bottles of juice cost ₹232, how much do 6 bottles of juice cost (in ₹)?
  35. 35.Which is closest to 803 × 70? (Round each number first.) (a) 112000 (b) 560000 (c) 5600 (d) 56000
  36. 36.Two tanks hold 50 litres and 60 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  37. 37.Round 92.38 to one decimal place. =
  38. 38.The HCF of two numbers is 5 and their LCM is 280. One of the numbers is 40. What is the other number?
  39. 39.7 : 10 = 28 : ?
  40. 40.If 6 kites cost ₹246, how much do 8 kites cost (in ₹)?

Answer key

  1. 720
  2. 135
  3. 32.9
  4. 12000
  5. 2
  6. 81
  7. 56
  8. 3
  9. 168
  10. 5
  11. 4400
  12. 3
  13. 10
  14. 180
  15. 40
  16. 374
  17. 60
  18. 1600
  19. 3179
  20. 28
  21. 10
  22. 4
  23. 450
  24. 32
  25. 3
  26. 6
  27. 30
  28. 60
  29. 80
  30. 11.6
  31. 4
  32. 24
  33. 50
  34. 348
  35. 56000
  36. 10
  37. 92.4
  38. 35
  39. 40
  40. 328

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