Question

if a/4 = b/5 then (a) a+4 / a-4 = b-5/b+5. (b). a+4/a-4 = b+5/b-5 (c). a-4/a+4 = b+5/b-5. (d) none of these

Answer 1

option B is correct

hope it helps.

Answer 2

Heya User,

By Componendo Dividendo :->
--> (b) ( a + 4 ) / ( a - 4 ) = ( b + 5 ) / ( b - 5 ) -> is correct ..

--> a/4 = b/5 => a/4 + 1 = b/5 + 1 => ( a + 4 ) / ( b + 5 ) = 4/5
--> a/4 = b/5 => a/4 - 1 = b/5 - 1 => ( a - 4 ) / ( b - 5 ) = 4/5

=> ( a + 4 ) / ( b + 5 ) = ( a - 4 ) / ( b - 5 )
=> ( a + 4 ) / ( a - 4 ) = ( b + 5 ) / ( b - 5 ) --> option (b)