Question

A by 15 is e a by 15 is equal to b by 10, b + 7 by 36 is equal to 5 by 12 then what fraction of a is B

Answer 1

Given

a/15=b/10

b+7/36= 5/12

or 12b+84= 180

or 12b. = 180-84

or b = 96/12

hence b = 8

putting the value of b equation 1

we get, 10a. = 15b

or 10a = 15*8

or, a= 120/10

hence a = 12

so the fraction is 12/15 = 8/10

hope this helps you