Banker's Discount Practice Test 1

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Question : 9 of 40

Marks: +1, -0

The bankers gain on a certain sum due 1 year hence is

13/ 50

of banker’s discount. The rate per cent per annum is:

35.14%
30%
17.88%
12.5%
16.67%

Solution:

Let BD be Rs x
Then BG

=13/50x

TD = (BD - BG) =

x-13/50x=37/50x

Sum

={BD×TD}/{BD-TD}

={x×37/50x}/{x-37/50x}

=37/50x^2×50/{13x}=37/13x

∴ SI on Rs

37/ 13 x

for 1 year is Rs x.

\Rate={100×x}/{1×37/13x}=35.14%

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