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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 379 · 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.A car goes 77 km on 7 litres of petrol. How far can it go on 34 litres (in km)?
  2. 2.Three temple bells ring every 30, 18 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  3. 3.Ishaan takes 30 seconds and Manav takes 54 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?
  4. 4.Which is closest to 3192 ÷ 39? (a) 160 (b) 40 (c) 80 (d) 800
  5. 5.2.6 × 5 =
  6. 6.Find the HCF of 36 and 42.
  7. 7.3 × (26 − 20) + 72 ÷ 6 =
  8. 8.Find the smallest number bigger than 9 that leaves a remainder of 1 when divided by 3, 4 or 9.
  9. 9.Which is closest to 205 + 196 + 95? (a) 500 (b) 400 (c) 700 (d) 600
  10. 10.If 7 kg of rice costs ₹567, how many kg can you buy for ₹729?
  11. 11.If 4 kg of rice costs ₹308, how many kg can you buy for ₹1155?
  12. 12.5 × (21 − 6) + 64 ÷ 8 =
  13. 13.What is 1/5 of 90 kg?
  14. 14.Which of these numbers divides exactly by 11? (a) 6016 (b) 8212 (c) 1555 (d) 8712
  15. 15.5 × (15 − 11) + 18 ÷ 9 =
  16. 16.Find the LCM of 3, 9 and 14.
  17. 17.Divide ₹235 between Aarav and Vivaan in the ratio 2 : 3. How much does Aarav get (in ₹)?
  18. 18.Which of these numbers divides exactly by 3? (a) 4198 (b) 6437 (c) 2793 (d) 1583
  19. 19.80% of a number is 20. What is the number?
  20. 20.If 3 kg of rice costs ₹228, how many kg can you buy for ₹988?
  21. 21.A car goes 144 km on 6 litres of petrol. How far can it go on 32 litres (in km)?
  22. 22.4 × (18 − 14) + 28 ÷ 4 =
  23. 23.2/3 of 15 + 2 × 3 =
  24. 24.9.71 + 3.8 =
  25. 25.A hall floor is 210 cm long and 120 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  26. 26.6.88 + 6.9 =
  27. 27.Find the smallest number bigger than 12 that leaves a remainder of 3 when divided by 12, 10 or 8.
  28. 28.Pooja scored 39 marks out of 50 in a test. What percentage did Pooja score?
  29. 29.5 painters can paint a school in 8 days. How many days would 10 painters take, working at the same speed?
  30. 30.(19 + 6) × 7 − 21 =
  31. 31.How many factors does 47 have?
  32. 32.How many factors does 94 have?
  33. 33.The ratio of boys to girls in a class is 4 : 5. There are 40 boys. How many girls are there?
  34. 34.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 15, 3 or 9.
  35. 35.Divide ₹312 between Aditya and Rohan in the ratio 5 : 1. How much does Rohan get (in ₹)?
  36. 36.A car goes 150 km on 6 litres of petrol. How far can it go on 39 litres (in km)?
  37. 37.2 painters can paint a school in 21 days. How many days would 3 painters take, working at the same speed?
  38. 38.Round 11.28 to one decimal place. =
  39. 39.Find the HCF of 75 and 90.
  40. 40.Divide ₹80 between Aditya and Ishaan in the ratio 1 : 9. How much does Ishaan get (in ₹)?

Answer key

  1. 374
  2. 90
  3. 270
  4. 80
  5. 13
  6. 6
  7. 30
  8. 37
  9. 500
  10. 9
  11. 15
  12. 83
  13. 18
  14. 8712
  15. 22
  16. 126
  17. 94
  18. 2793
  19. 25
  20. 13
  21. 768
  22. 23
  23. 16
  24. 13.51
  25. 28
  26. 13.78
  27. 123
  28. 78
  29. 4
  30. 154
  31. 2
  32. 4
  33. 50
  34. 46
  35. 52
  36. 975
  37. 14
  38. 11.3
  39. 15
  40. 72

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