Question 599494
Let Rauf's income = X
So Raheel's income = X + (25X/100) =125X/100

Difference between their incomes = {{{(125X)/100-X}}}
i.e. {{{(125X-100X)/100}}}
i.e. 25X/100

So Rauf's income is less than Raheel's income by {{{((25X/100)/(125X/100))*100}}}%
i.e. {{{(25X/125X)*100}}}
i.e. 100/5 = 20 %



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