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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 394 · 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 9 mangoes cost ₹486, how much do 5 mangoes cost (in ₹)?
  2. 2.Find the HCF of 104 and 65.
  3. 3.2.22 + 2.7 =
  4. 4.Find the LCM of 27 and 21.
  5. 5.10/11 − 2/4 =
  6. 6.8.61 + 9.6 =
  7. 7.24 ÷ 4 × 2 + 17 =
  8. 8.Which is closest to 392 ÷ 19? (a) 20 (b) 200 (c) 10 (d) 40
  9. 9.Find the HCF of 27 and 24.
  10. 10.Round 65.21 to one decimal place. =
  11. 11.6 : 5 = 54 : ?
  12. 12.Divide ₹70 between Sneha and Ananya in the ratio 3 : 2. How much does Ananya get (in ₹)?
  13. 13.3 : 2 = 18 : ?
  14. 14.If 6 pens cost ₹36, how much do 8 pens cost (in ₹)?
  15. 15.30 + 2 × 8 − 6 =
  16. 16.Find the third proportional to 7 and 35 (that is, 7 : 35 = 35 : ?).
  17. 17.Find the third proportional to 3 and 9 (that is, 3 : 9 = 9 : ?).
  18. 18.Divide ₹306 between Aditya and Diya in the ratio 7 : 2. How much does Aditya get (in ₹)?
  19. 19.If 5 kg of rice costs ₹320, how many kg can you buy for ₹704?
  20. 20.(13 + 17) × 6 − 21 =
  21. 21.The HCF of two numbers is 2 and their LCM is 126. One of the numbers is 18. What is the other number?
  22. 22.4 : 13 = 12 : ?
  23. 23.3/5 of 45 + 9 × 9 =
  24. 24.Which of these numbers divides exactly by 11? (a) 3034 (b) 2337 (c) 1496 (d) 6527
  25. 25.What percent of 200 is 18?
  26. 26.Find the smallest number bigger than 15 that leaves a remainder of 4 when divided by 15, 6 or 10.
  27. 27.Divide ₹110 between Arjun and Saanvi in the ratio 2 : 3. How much does Saanvi get (in ₹)?
  28. 28.15% of a number is 75. What is the number?
  29. 29.What is the smallest number you must add to 169 so that it divides exactly by 3?
  30. 30.A hall floor is 160 cm long and 140 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  31. 31.Round 67003 to the nearest ten.
  32. 32.A hall floor is 75 cm long and 50 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  33. 33.6 : 7 = 54 : ?
  34. 34.Which is closest to 803 + 295 + 204? (a) 1500 (b) 1400 (c) 1300 (d) 1200
  35. 35.What is the smallest number you must take away from 302 so that it divides exactly by 4?
  36. 36.Two tanks hold 50 litres and 40 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  37. 37.Kavya takes 50 seconds and Zoya takes 75 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.Rahul takes 36 seconds and Nisha takes 60 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?
  39. 39.If 12 bottles of juice cost ₹360, how much do 6 bottles of juice cost (in ₹)?
  40. 40.A hostel has enough food for 12 students for 20 days. How many days will the same food last for 10 students?

Answer key

  1. 270
  2. 13
  3. 4.92
  4. 189
  5. 9/22
  6. 18.21
  7. 29
  8. 20
  9. 3
  10. 65.2
  11. 45
  12. 28
  13. 12
  14. 48
  15. 40
  16. 175
  17. 27
  18. 238
  19. 11
  20. 159
  21. 14
  22. 39
  23. 108
  24. 1496
  25. 9
  26. 34
  27. 66
  28. 500
  29. 2
  30. 56
  31. 67000
  32. 6
  33. 63
  34. 1300
  35. 2
  36. 10
  37. 150
  38. 180
  39. 180
  40. 24

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