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The true discount on a bill due 10 months hence at 6% per annum is Rs. 26.25. The amount of the bill is:

Rs. 1250.25
Rs. 1150.25
Rs. 551.25
Rs. 645.25
Explanation:

Given,R=6%,T=10/12yrs,TD=Rs.26.25,A=?
TD=$\dfrac{A*R*T}{100+R*T}$
26.25=$\dfrac{A*6*\dfrac{10}{12}}{100+(6*\dfrac{10}{12})}$
26.25=$\dfrac{A*5}{105}$
A=>Rs.551.25

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