Question

Mr.willams had three television sets where of the same price.He sold one at cost price, one at 20% more than cost price, and one at 15% more than cost price.If he recieved a total of 760 dollars how much was his profit?

Answer 1

Let cost price = $x$.

$x+1.2x+1.15x=760$

Combine like terms.

$3.35x=760$

Divide:

$x= 226.87$

That's his cost price. Now just add the percentages. 

$(0.2*226.87)+(0.15*226.87)= 79.40$

Answer 2

$79.40 add the percentages then put them in a fraction .35 over 3.35 if u sum up the percentages then you multiply the fraction by 760 to get the answer