If 20% of a =b, then b% of 20 is the same as:
A
6% of a
B
8% of a
C
10% of a
D
4% of a
Correct Answer: 4% of a
Given , 20% of a = b ⇒a×20100 = b⇒a5 = b.'. b = a5.'. b% of 20 = 20 ×b100 = 20×5100 = 20×a5×100 = 4×a100 = 4% of a