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P6 Math · Chapter 5brightbit.net/worksheets

Ratio — Before-and-After Problems

Name: ______________________Class: ________Date: ____________Score: ____ / 10
  1. 1.

    Ali and Bob share money in ratio 3:5. Bob gives $20 to Ali. Now their ratio is 1:1. How much did each have originally?

    Answer: ____________________________________

  2. 2.

    Tom and Sam have coins in ratio 5:3. Tom gives 10 coins to Sam and the ratio becomes 3:5. How many coins did Tom start with?

    Answer: ____________________________________

  3. 3.

    Red and blue marbles are in ratio 2:3. After adding 15 blue marbles, ratio is 2:6. How many red marbles are there?

    Answer: ____________________________________

  4. 4.

    A:B = 4:1. A gives 12 units to B. Now A:B = 2:3. Find the total.

    Answer: ____________________________________

  5. 5.

    The ratio of boys to girls in a class is 3:4. When 6 boys join, ratio becomes 3:2. How many girls are there?

    Answer: ____________________________________

  6. 6.

    Mary has thrice as many stickers as Jane. After Mary gives 24 to Jane, they have equal amounts. How many does each have now?

    Answer: ____________________________________

  7. 7.

    P:Q = 2:5. P receives 9 more. New ratio P:Q = 1:2. Find Q.

    Answer: ____________________________________

  8. 8.

    Jugs A and B hold water in ratio 3:1. After pouring 200 ml from A into B, ratio is 1:1. Find original amount in A.

    Answer: ____________________________________

  9. 9.

    Ages of father and son are in ratio 7:2. In 6 years ratio will be 2:1. Find their current ages.

    Answer: ____________________________________

  10. 10.

    Ratio of milk to water in a drink is 3:2. After adding 100 ml of water the ratio is 3:4. Find original volume of milk.

    Answer: ____________________________________

Answer key — P6 Math: Ratio — Before-and-After Problems

For parents. Step-by-step explanations for every question are free on brightbit.net.

  1. 1.Ali $30, Bob $50
  2. 2.40
  3. 3.10
  4. 4.25
  5. 5.8
  6. 6.Each has 36
  7. 7.30
  8. 8.600 ml
  9. 9.Father 42, Son 12
  10. 10.150 ml
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