Question

Abel bought a mini hi-fi set for S600.

He sold it to Bob at a loss of 20%.
Bob sold it to Charles and made a profit of 5%. How much did Charles pay for it?

Answer 1

$504

$600* .8 = $480

$480 * 1.05 = $504

Explanation:

Answer 2

Explanation:

Abel:

Cost price = $ 600

Loss = 20%

Selling price =
`(100-loss)/(100)*Cost \ price`

`= ((100-20))/(100)*600\\\\=(80)/(100)*600`

= 80 * 6 = $ 480

Cost price for Bob = Selling price of Abel = $ 480

Bob's cost Price = $480

Selling price =
`(100+Profit)/(100)*CP\\\\`

`= (100+5)/(100)*480\\=(105)/(100)*480`

= $ 504

Amount paid by Charles =$ 504