Question

How many grams of oil are in 500. g of a gasoline-oil mixture( solution) that is 5.0 oil? (w/w)

Answer 1

Answer:

Given :- Let C.P. = ₹x

On selling at ₹900, Profit = ₹(900-x)

On selling at ₹450, Loss = ₹(x-450)

To Find :- S.P.

Solution :-

As per the given condition,

$900 - x = 2(x - 450) \\ 900 - x = 2x - 900 \\ 900 + 900 = 2x + x \\ 3x = 1800 \\ x = \frac{1800}{3} \\ x = 600$

∴ C.P. = ₹600

Profit = 25%

$\: \: \: \: \: = 600 + \frac{25}{100} \times 600 \\ \: \: \: = 600 + 150 \\ = 750$

Hence, S.P. = ₹750