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# Aptitude - Banker's Discount - Discussion

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"Hold a true friend with both hands."
- (Proverb)
4.

The banker's discount on a sum of money for 1 years is Rs. 558 and the true discount on the same sum for 2 years is Rs. 600. The rate percent is:

 [A]. 10% [B]. 13% [C]. 12% [D]. 15%

Explanation:

B.D. for years = Rs. 558.
B.D. for 2 years
 = Rs. 558 x 2 x 2 3
= Rs. 744

T.D. for 2 years = Rs. 600.

 Sum = B.D. x T.D. = Rs. 744 x 600 = Rs. 3100. B.D. - T.D 144

Thus, Rs. 744 is S.I. on Rs. 3100 for 2 years.

 Rate = 100 x 744 % = 12% 3100 x 2

 S.V.S Rama Chaitanya said: (Fri, Dec 3, 2010 06:44:18 AM) how bankers discount for 2yr's has taken .it is given for true discount only

 Krishna said: (Sun, Mar 20, 2011 04:13:25 AM) Given banker's discount(b.d) for 3/2 yrs = 558 then banker's discount(b.d) for 2 yrs = x x=(558*2)/(3/2) x=744 we know t.d=(b.d*100)/(100+(r*t)) 600=(744*100)/(100+(r*2)) Therefore, r=12%