the present worth of a certain bill due sometime hence is rs. 1296 and the true discount is rs. 72. what is the banker ' s discount?  Choose the correct answer:
A) rs . 76
B) rs . 72
C) rs . 74
D) rs . 4
E) none of these
<gadget id="calculator">72 ** 2</gadget>
<output>5_184</output>

<gadget id="calculator">5_184 / 1_296</gadget>
<output>4</output>

<gadget id="calculator">72 + 4</gadget>
<output>76</output>

<result>A</result>
the present worth of a certain bill due sometime hence is rs. 1296 and the true discount is rs. 72. what is the banker ' s discount?
add(72, divide(power(72, const_2), 1296))
explanation : bg = ( td ) 2 / pw = 722 / 1296 = 72 × 72 / 1296 = 12 × 12 / 36 = 12 / 3 = rs . 4 bg = bd – td = > 4 = bd - 72 = > bd = 72 + 4 = rs . 76 answer : option a