If x/2+y=0.8 and 7/x+y/2=10, then the . . .

Question : If (x/2)+y=0.8 and 7/[x+(y/2)] = 10, then the value of x+y is 

a) 1

b) 0.6

c) 0.8

d) 0.5

Doubt by Gauri

Solution : 

Adding equation (1) and (2)

Hence, a) would be the correct option.