The length of the sides of a triangle are in the ratio of 3 to 5 to If the perimeter of the triangle is 70, what is the length of the longest side?

A 5

B 6

C 15

D 25

Correct Answer: Option E

the sides of a triangle are 3x,5x and 6x

According to question,
3x+5x+6x=70

so , x=5

The length of the longest side=6x=6×5=30