← Practice: number skills lesson New set →

Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 68 · 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.What is the smallest number you must add to 445 so that it divides exactly by 7?
  2. 2.The ratio of boys to girls in a class is 5 : 2. There are 50 boys. How many girls are there?
  3. 3.5 painters can paint a school in 10 days. How many days would 2 painters take, working at the same speed?
  4. 4.Find the HCF of 117 and 52.
  5. 5.Write 7/20 as a percent.
  6. 6.Find the HCF of 21 and 24.
  7. 7.12 : 13 = 96 : ?
  8. 8.The HCF of two numbers is 3 and their LCM is 18. One of the numbers is 6. What is the other number?
  9. 9.The ratio of boys to girls in a class is 5 : 8. There are 30 boys. How many girls are there?
  10. 10.Divide ₹128 between Kabir and Kavya in the ratio 3 : 5. How much does Kabir get (in ₹)?
  11. 11.What is 1/3 of 36 km?
  12. 12.1/10 × 1/2 =
  13. 13.Find the LCM of 3 and 4.
  14. 14.Three temple bells ring every 6, 5 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  15. 15.The ratio of boys to girls in a class is 5 : 9. There are 45 boys. How many girls are there?
  16. 16.Which is closest to 203 + 302 + 599? (a) 1000 (b) 1100 (c) 1300 (d) 1200
  17. 17.Which of these numbers divides exactly by 6? (a) 6694 (b) 3683 (c) 4800 (d) 1251
  18. 18.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 10, 5 or 6.
  19. 19.Find the LCM of 11, 6 and 9.
  20. 20.Find the LCM of 35 and 10.
  21. 21.If 9 mangoes cost ₹216, how much do 3 mangoes cost (in ₹)?
  22. 22.A hall floor is 150 cm long and 100 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  23. 23.What is the smallest number you must take away from 646 so that it divides exactly by 6?
  24. 24.What is 15% of 540?
  25. 25.Which is closest to 800 + 900 + 501? (a) 2400 (b) 2300 (c) 2100 (d) 2200
  26. 26.Find the LCM of 12 and 14.
  27. 27.3/5 × 8/9 =
  28. 28.What is 50% of 24?
  29. 29.How many factors does 28 have?
  30. 30.(13 + 17) × 8 − 25 =
  31. 31.Find the LCM of 14 and 12.
  32. 32.A car goes 132 km on 11 litres of petrol. How far can it go on 24 litres (in km)?
  33. 33.Find the LCM of 4, 14 and 2.
  34. 34.If 2 kg of rice costs ₹136, how many kg can you buy for ₹816?
  35. 35.Which is closest to 702 × 29? (Round each number first.) (a) 21000 (b) 210000 (c) 2100 (d) 42000
  36. 36.If 9 notebooks cost ₹324, how much do 11 notebooks cost (in ₹)?
  37. 37.Vivaan takes 36 seconds and Kavya takes 80 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?
  38. 38.2 : 15 = 14 : ?
  39. 39.If 7 kg of rice costs ₹609, how many kg can you buy for ₹1044?
  40. 40.Which is closest to 4493 ÷ 49? (a) 180 (b) 900 (c) 90 (d) 45

Answer key

  1. 3
  2. 20
  3. 25
  4. 13
  5. 35
  6. 3
  7. 104
  8. 9
  9. 48
  10. 48
  11. 12
  12. 1/20
  13. 12
  14. 60
  15. 81
  16. 1100
  17. 4800
  18. 31
  19. 198
  20. 70
  21. 72
  22. 6
  23. 4
  24. 81
  25. 2200
  26. 84
  27. 8/15
  28. 12
  29. 6
  30. 215
  31. 84
  32. 288
  33. 28
  34. 12
  35. 21000
  36. 396
  37. 720
  38. 105
  39. 12
  40. 90

Free quantitative aptitude lessons, practice and worksheets at talentjr.in/quantitative-aptitude