Discussion :: Banker's Discount
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The banker's discount on a certain sum due 2 years hence is \(\frac { 11 } { 10 }\)of the true discount .The rate percent is:
Answer : Option C
Explanation :
Let T.D. be Re. 1.
Then, B.D. = Rs. \(\frac {1 1 } {10 } \)= Rs.1.10
Sum = Rs \([\frac { 1.10*1 } { 1.10-1 } ]\) = Rs.\((\frac {1 10 } {10 }) \) =Rs. 11
S.I. on Rs. 11 for 2 years is Rs. 1.10
Rate = \([\frac { 100*1.10 } { 11*2 } ]\) % = 5%
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