If 25% of a number b is 25.18. What is 20% of b?

If 25% of a number b is 25.18. What is 20% of b?

Using our 25% as 0.25, we have:
0.25b = 25.18

Using our equation calculator, we get:
b = 100.72

The question asks what is 20% of 100.72. Using our calculator, we get:
20.144