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Question

Hi, can help with this qn? Thanks!

______

The ratio of the amount of money Bob had to the amount of money Jenny had was 1:3. After Bob spent  $385 and Jenny received $450 from her father, Jenny had 9 times as much money as Bob. How much money did Jenny have at first?

 

**we got a different answer front the one given.

 

Answer

At first —
Bob : 1 unit
Jenny : 3 units

After —
Bob : 1 unit – 385
Jenny : 3 units + 450

(1 unit – 385) x 9 = 9 units – 3465 ——- 3 units + 450
1 unit = (450 + 3465)/(9 – 3) = 652.50
3 units = 1957.50

Ans : $1957.50.

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6 units –> 3 x $385 + $450 = $1605

3 units –> $1605 / 2 = $802.50

Jenny (Before) –> $802.50 + 3 x $385 = $1957.50

Jenny had $1957.50 at first.

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