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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 732 · 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. 1.4.7 × 7 =
  2. 2.Which of these numbers divides exactly by 3? (a) 9257 (b) 4104 (c) 8084 (d) 8512
  3. 3.The HCF of two numbers is 6 and their LCM is 216. One of the numbers is 24. What is the other number?
  4. 4.Find the third proportional to 8 and 32 (that is, 8 : 32 = 32 : ?).
  5. 5.Zoya scored 40 marks out of 80 in a test. What percentage did Zoya score?
  6. 6.What percent of 25 is 16?
  7. 7.Which is closest to 2391 ÷ 39? (a) 600 (b) 30 (c) 120 (d) 60
  8. 8.Round 31284 to the nearest hundred.
  9. 9.4/11 × 6/9 =
  10. 10.What is the smallest number you must take away from 616 so that it divides exactly by 13?
  11. 11.Write 27/50 as a percent.
  12. 12.120% of a number is 120. What is the number?
  13. 13.Write 1/2 as a percent.
  14. 14.Divide ₹676 between Kabir and Tara in the ratio 9 : 4. How much does Kabir get (in ₹)?
  15. 15.The HCF of two numbers is 3 and their LCM is 18. One of the numbers is 6. What is the other number?
  16. 16.Find the HCF of 36 and 20.
  17. 17.If 9 kg of rice costs ₹216, how many kg can you buy for ₹264?
  18. 18.Divide ₹550 between Manav and Diya in the ratio 3 : 8. How much does Diya get (in ₹)?
  19. 19.How many factors does 15 have?
  20. 20.150% of a number is 660. What is the number?
  21. 21.If 7 kg of rice costs ₹308, how many kg can you buy for ₹616?
  22. 22.Find the LCM of 7, 3 and 10.
  23. 23.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 3, 10 or 15.
  24. 24.2 × (11 − 4) + 99 ÷ 9 =
  25. 25.Manav takes 72 seconds and Nisha 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?
  26. 26.4 painters can paint a school in 7 days. How many days would 14 painters take, working at the same speed?
  27. 27.A car goes 50 km on 5 litres of petrol. How far can it go on 23 litres (in km)?
  28. 28.The HCF of two numbers is 6 and their LCM is 378. One of the numbers is 42. What is the other number?
  29. 29.Round 55.72 to one decimal place. =
  30. 30.What is 50% of 586?
  31. 31.Find the LCM of 7 and 3.
  32. 32.98 − 56 ÷ 7 × 8 =
  33. 33.Divide ₹108 between Farhan and Arjun in the ratio 5 : 7. How much does Farhan get (in ₹)?
  34. 34.Write 3/4 as a percent.
  35. 35.A hostel has enough food for 11 students for 17 days. How many days will the same food last for 17 students?
  36. 36.If 6 pencil boxes cost ₹354, how much do 12 pencil boxes cost (in ₹)?
  37. 37.3/4 of 20 + 4 × 6 =
  38. 38.The ratio of boys to girls in a class is 5 : 7. There are 10 boys. How many girls are there?
  39. 39.If 9 cricket balls cost ₹153, how much do 20 cricket balls cost (in ₹)?
  40. 40.Round 36.79 to one decimal place. =

Answer key

  1. 32.9
  2. 4104
  3. 54
  4. 128
  5. 50
  6. 64
  7. 60
  8. 31300
  9. 8/33
  10. 5
  11. 54
  12. 100
  13. 50
  14. 468
  15. 9
  16. 4
  17. 11
  18. 400
  19. 4
  20. 440
  21. 14
  22. 210
  23. 31
  24. 25
  25. 720
  26. 2
  27. 230
  28. 54
  29. 55.7
  30. 293
  31. 21
  32. 34
  33. 45
  34. 75
  35. 11
  36. 708
  37. 39
  38. 14
  39. 340
  40. 36.8

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