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2016-02-07T21:01:55+05:30

b's income is more than a's by 80%
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2016-02-07T22:24:33+05:30
Let the income of 'a' be Rs. A and of 'b' be Rs.B ;
If A is 20% less than that of B then 100%-20% of B = A
⇒ 80% B = A
⇒ B = (100/80) of A = 10 / 8 % of A = 1.25 % of A 
Hence, the income of b is 1.25 % more than that of a.
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