Problema Solution
John a retail merchant invested Php 195000 in three kinds of cameras , the profit on the sales of camera A was 25%:on the sales of camera B, 12% profit: and there was a loss of 1% on the sales of camera C. If John invested an equal amount in cameras A & B, an overall profit on the total investments was 14%, how muchwas invested on each kind of camera?
Answer provided by our tutors
let
a = the money invested in camera A
b = the money invested in camera B
c = the money invested in camera C
John a retail merchant invested Php 195000 in three kinds of cameras:
a + b + c = 195000
John invested an equal amount in cameras A & B:
a = b
overall profit on the total investments was 14%
0.25a + 0.12b - 0.01c = 0.14*195000
by solving the system of equations:
a + b + c = 195000
a = b
0.25a + 0.12b - 0.01c = 0.14*195000
we find:
a = $75,000
b = $75,000
c = $45,000
click here to see the step by step solution of the system of equations:
$75,000 were invested in each of the camera A and camera B
$45,000 was invested in camera C.