If 20% of A = 50% of B, then what percentage of A is B?

If 20% of A = 50% of B, then what per cent of A is B?

If 20% of A = 35% of B, then A : B=

If 15% of A = 20% of B, then A : B = ?

if 20% of a and 40% of b is 230 and 40% of a and 20% of b is 190 ,then b is what percentage more or less than a ?

If A is 20% more than C and B is 60% 1 more than C, then A' is what percentage of B?