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27 March, 09:30

Charmaine's penny bank is

1/10

full. After she adds

400

pennies, it is

1/2

full. How many pennies can Charmaine's bank hold

+3
Answers (1)
  1. 27 March, 09:32
    0
    We shall take X as the total amount of cash her piggy bank can hold

    therefore 1x/10+400=1x/2

    400=1x/2-1x/10

    we should make the denominator's the same

    400=5x/10-1x/10

    400=4x/10

    400*10=4x

    4000=4x

    4000/4=X

    1000=X

    hope u found this useful
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