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If the true discount on a certain sum due 6 months hence at 15% is Rs. 120, what is the banker's discount on the same sum for the same time and at the same rate?

Correct Answer: 129

Explanation:

B.G. = S.I. on T.D.


          = Rs.(120 x 15 x 1/2 x 1/100)


  = Rs. 9.


(B.D.) - (T.D.) = Rs. 9.


 


B.D. = Rs. (120 + 9) = Rs. 129.


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