Question

Two numbers A and B are such that the sum of 5%
of A and 10% of B is 1/2 of the sum of 20% of A
and 10% of B. Find the ratio of A:B?
​

Answer 1

A.......of....10%

20%.......of........B

ratio of both =1/2

then,

A/B=1/2

2A=B

2A =20%

a=20/2

a:B

10:20

1:2