The ratio of two number is 3 : 5 and their sum is The greater of the two numbers is

The ratio of two number is 3 : 5 and their sum is The greater of the two numbers is—

A 240

B 400

C 480

D 520

Correct Answer: Option B

here, one number 3x another number 5x here, 5x+3x=640 or,8x=640 or,x=640/8=80 so ,greater number is = 80 X 5= 400