two numbers are in the ratio of 15 : 11 . if their h . c . f . is 13 , find the numbers .
let the required numbers be 15 . x and llx . then , their h . c . f . is x . so , x = 13 . the numbers are ( 15 x 13 and 11 x 13 ) i . e . , 195 and 143 . answer is a .
multiply(15, 13)