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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 132 · 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.If 7 kg of rice costs ₹420, how many kg can you buy for ₹240?
  2. 2.5.02 + 1.9 =
  3. 3.34 − 8 ÷ 2 × 2 =
  4. 4.A car goes 50 km on 5 litres of petrol. How far can it go on 15 litres (in km)?
  5. 5.A hostel has enough food for 2 students for 19 days. How many days will the same food last for 19 students?
  6. 6.43 − 54 ÷ 6 × 3 =
  7. 7.Three temple bells ring every 20, 8 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  8. 8.Which is closest to 196 × 91? (Round each number first.) (a) 36000 (b) 180000 (c) 1800 (d) 18000
  9. 9.If 9 kg of rice costs ₹513, how many kg can you buy for ₹684?
  10. 10.What is the smallest number you must take away from 437 so that it divides exactly by 3?
  11. 11.Which of these numbers divides exactly by 11? (a) 1056 (b) 9545 (c) 7066 (d) 1744
  12. 12.Diya takes 48 seconds and Karan 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?
  13. 13.What is the smallest number you must add to 967 so that it divides exactly by 6?
  14. 14.Which is closest to 398 × 42? (Round each number first.) (a) 16000 (b) 160000 (c) 32000 (d) 1600
  15. 15.What is 3/4 of ₹72?
  16. 16.2/12 + 5/6 =
  17. 17.Divide ₹550 between Kabir and Diya in the ratio 1 : 9. How much does Kabir get (in ₹)?
  18. 18.Round 64836 to the nearest hundred.
  19. 19.3.94 + 7.9 =
  20. 20.How many factors does 21 have?
  21. 21.Find the third proportional to 9 and 36 (that is, 9 : 36 = 36 : ?).
  22. 22.10 : 8 = 40 : ?
  23. 23.Which of these numbers divides exactly by 3? (a) 4120 (b) 2190 (c) 7220 (d) 6883
  24. 24.The ratio of boys to girls in a class is 2 : 7. There are 4 boys. How many girls are there?
  25. 25.Find the HCF of 55 and 77.
  26. 26.8 painters can paint a school in 6 days. How many days would 16 painters take, working at the same speed?
  27. 27.The HCF of two numbers is 6 and their LCM is 252. One of the numbers is 36. What is the other number?
  28. 28.Find the smallest number bigger than 9 that leaves a remainder of 3 when divided by 4, 8 or 9.
  29. 29.A car goes 85 km on 5 litres of petrol. How far can it go on 21 litres (in km)?
  30. 30.3 : 5 = 27 : ?
  31. 31.If 7 pencil boxes cost ₹224, how much do 2 pencil boxes cost (in ₹)?
  32. 32.What is the smallest number you must add to 597 so that it divides exactly by 4?
  33. 33.Divide ₹132 between Rohan and Priya in the ratio 1 : 5. How much does Rohan get (in ₹)?
  34. 34.Round 65.89 to one decimal place. =
  35. 35.Three temple bells ring every 5, 10 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  36. 36.A car goes 46 km on 2 litres of petrol. How far can it go on 6 litres (in km)?
  37. 37.Round 82453 to the nearest thousand.
  38. 38.A car goes 18 km on 2 litres of petrol. How far can it go on 33 litres (in km)?
  39. 39.8.86 + 9.3 =
  40. 40.Three temple bells ring every 5, 18 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?

Answer key

  1. 4
  2. 6.92
  3. 26
  4. 150
  5. 2
  6. 16
  7. 40
  8. 18000
  9. 12
  10. 2
  11. 1056
  12. 240
  13. 5
  14. 16000
  15. 54
  16. 1
  17. 55
  18. 64800
  19. 11.84
  20. 4
  21. 144
  22. 32
  23. 2190
  24. 14
  25. 11
  26. 3
  27. 42
  28. 75
  29. 357
  30. 45
  31. 64
  32. 3
  33. 22
  34. 65.9
  35. 40
  36. 138
  37. 82000
  38. 297
  39. 18.16
  40. 90

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