a + e + f + g = 285, b + d + f+ g = 195
c + d + e + g = 115, e + g = 45 , f + g = 70,
d + g = 50
a + b + c + d + e + f+ g = 500 - 50 = 450
As in previous question, we obtain
a + f = 240, b + d = 125, c + e = 65
a + e = 215,b + f = 145; b + c + d = 165
a + c + e = 255; a + b + f = 335
On solving we get, On b = 95, c = 40, a = 190, d = 30, e = 25, f = 50 and g = 2 0
Desired quantity= a + b + c = 325