যদি x+5y=16 এবং x=3y হয় y=?

যদি x+5y=16 এবং x=3y হয় y=?

A -24

B -2

C 2

D 8

Solution

Correct Answer: Option C

substituting the second equation in the first given one we get

(3y) + 5y = 16

8y = 16

y = 2