If 60% of A's income is equal to 75% of B's income, then B's income is equal to x% of A's income. The value of x is :

Question: If 60% of A's income is equal to 75% of B's income, then B's income is equal to x% of A's income. The value of x is :

Solution:
According to the question,
60 × (A/100) = 75 × (B/100)
60A = 75B
4A = 5B
B = 4A/5

Again
B = A × (x/100)
4A/5 = A × (x/100)
4/5 = x/100
5x = 400
x = 400/5
x = 80