Mira and Marie sell computers. Last month Mira sold 16 more
computers than Marie. Together they sold 56. How many computers did
Marie sell?
a. 20
b. 36
c. 16
d. 40
Let X = no of computers sold by mira
Y = No of computers sold by Marie
Given X = Y+16
X+Y = 56
Y+16 +Y = 56
2Y = 40
Y = 20
X+20 = 56
X = 36
No of computers sold by Marie = 20
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