Question

The sides of a triangle are in the ratio 1 : 3 : 5 and its perimeter is 90 cm. The length of its largest side is -
a) 40 cm
b) 50 cm
c) 36 cm
d) 54 cm ​

Answer 1

Answer:

Let the sides be x , 3x and 5x.

X + 3x + 5x =90

9x = 90

x =90/9

x =10

X=10 cm

3x = 3x10

= 30 cm

5x = 5x 10

=50 cm

Therefore, the correct answer is option b)50 cm.

Hope it helps you.