If x + 5y = 16 and x = - 3y, then y = ? 

A  3 

B  5 

C  8 

D  11 

Solution

Correct Answer: Option C

Solution: 

          x + 5y = 16 ........... (1) 

   => -3y + 5y = 16         [As, x = -3y ] 

   => 2y = 16 

         y = 16/2 = 8 

 

 

Practice More Questions on Our App!

Download our app for free and access thousands of MCQ questions with detailed solutions