If 30% of a = b, then b% of 30 is the same as:

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25 Jul 2019 Percentage

If 30% of a = b, then b% of 30 is the same as:

OPtion

1) 3% of b%
2) 9% of b%
3) 0.9% of b%
4) 0.3% of b%
5) 27% of b%
6) 9% of a%
7) 18% of b%
8) 3% of a%
9) 13% of b%
10) None of these

Solution

30% of a = b
⇒ b = 3a/10

b% of 30 = (3a/10)30/100 = 9a/100 = 9% of a

Correct Option: 6 Best Solution (3)