Banker's Discount Practice Test 1

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Question : 16 of 40

Marks: +1, -0

The banker’s gain on a certain sum due

1 6/ 4

years hence is

3/ 11

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

20%
16%
18.33%
8.02%
$15 1 / 3%$

Solution:

Let BD be Rs x.
Then BG

= 3/11x

TD=(BD-BG)

=(x-3/11x)=8/11x

Sum

={BD×TD}/{BD-TD}

=(x×8/11x)/(x-8/11x)

={8x^2}/11×11/{3x}

={8x}/3

SI on

{8x}/3

of

6 1/4

years is Rs x.
Rate

={SI×100}/{\Time ×P}

={8x×100}/{3×8/3x×25/4}=16%

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