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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 599 · 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.The ratio of boys to girls in a class is 8 : 7. There are 72 boys. How many girls are there?
  2. 2.What is 15% of 260?
  3. 3.How many factors does 22 have?
  4. 4.What percent of 250 is 140?
  5. 5.Two tanks hold 50 litres and 175 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  6. 6.A car goes 16 km on 2 litres of petrol. How far can it go on 34 litres (in km)?
  7. 7.Round 70.13 to one decimal place. =
  8. 8.Round 13.21 to one decimal place. =
  9. 9.Round 36278 to the nearest ten.
  10. 10.Divide ₹286 between Saanvi and Tara in the ratio 2 : 9. How much does Saanvi get (in ₹)?
  11. 11.3/4 × 3/10 =
  12. 12.Which of these numbers divides exactly by 8? (a) 2792 (b) 1861 (c) 3148 (d) 1194
  13. 13.Find the LCM of 18 and 42.
  14. 14.Find the LCM of 10 and 35.
  15. 15.16.8 ÷ 6 =
  16. 16.If 10 mangoes cost ₹360, how much do 2 mangoes cost (in ₹)?
  17. 17.If 3 bottles of juice cost ₹156, how much do 11 bottles of juice cost (in ₹)?
  18. 18.Which of these numbers divides exactly by 8? (a) 2435 (b) 7613 (c) 2472 (d) 7169
  19. 19.Divide ₹406 between Dev and Ananya in the ratio 4 : 3. How much does Dev get (in ₹)?
  20. 20.5/7 × 1/8 =
  21. 21.What is the smallest number you must add to 968 so that it divides exactly by 12?
  22. 22.Divide ₹429 between Aditya and Manav in the ratio 2 : 9. How much does Aditya get (in ₹)?
  23. 23.5.21 + 1.1 =
  24. 24.Two tanks hold 30 litres and 80 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  25. 25.Which is closest to 400 × 29? (Round each number first.) (a) 120000 (b) 1200 (c) 24000 (d) 12000
  26. 26.Arjun scored 60 marks out of 80 in a test. What percentage did Arjun score?
  27. 27.(16 + 7) × 3 − 14 =
  28. 28.If 2 kg of rice costs ₹150, how many kg can you buy for ₹675?
  29. 29.Find the LCM of 9 and 24.
  30. 30.Zoya takes 36 seconds and Kabir 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?
  31. 31.Find the HCF of 8 and 10.
  32. 32.56.7 ÷ 7 =
  33. 33.Find the LCM of 7 and 3.
  34. 34.37 − 8 ÷ 2 × 3 =
  35. 35.27 ÷ 9 × 3 + 8 =
  36. 36.(16 + 3) × 3 − 7 =
  37. 37.2/4 + 1/10 =
  38. 38.A hall floor is 250 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  39. 39.What is the smallest number you must add to 141 so that it divides exactly by 7?
  40. 40.A car goes 153 km on 9 litres of petrol. How far can it go on 24 litres (in km)?

Answer key

  1. 63
  2. 39
  3. 4
  4. 56
  5. 25
  6. 272
  7. 70.1
  8. 13.2
  9. 36280
  10. 52
  11. 9/40
  12. 2792
  13. 126
  14. 70
  15. 2.8
  16. 72
  17. 572
  18. 2472
  19. 232
  20. 5/56
  21. 4
  22. 78
  23. 6.31
  24. 10
  25. 12000
  26. 75
  27. 55
  28. 9
  29. 72
  30. 144
  31. 2
  32. 8.1
  33. 21
  34. 25
  35. 17
  36. 50
  37. 3/5
  38. 15
  39. 6
  40. 408

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