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If 20% of A = 30% of B, then Bis how muc...

If 20% of A = 30% of B, then Bis how much per cent less than A?

A

20

B

25

C

`33.33 `

D

`12.5`

Text Solution

Verified by Experts

The correct Answer is:
C
20% of A =30% of B
`implies(20)/(200)xxA=(30)/(100)xxB`
`impliesB=(2A)/(3)`
`:.` Required per cent decrease
`=(A-(2A)/(3))/(A)xx100`
`=(1)/(3)xx100=33.33%`
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