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Anarel [89]
3 years ago
14

mum spent 2/3 of her money and put 1/4 of the remainder in the bank. she put $20 in the bank. How much did she start with?

Mathematics
1 answer:
skad [1K]3 years ago
4 0

Let x be the initial amount of money. We know that mum spent 2/3 of this amount, so she's left with

x - \dfrac{2x}{3} = \dfrac{x}{3}

Of this remainder, only 1/4 was deposited, which is

\dfrac{x}{3}\times \dfrac{1}{4} = \dfrac{x}{12}

And this amount equals 20, so we have

\dfrac{x}{12} = 20 \iff x = 20\times 12 = 240

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