The banker's gain of a certain sum due 2 years hence at 10% per annum is Rs. 24. What is the present worth?  Select the correct option:
A) rs . 600	B) rs . 500	C) rs . 400	D) rs . 300	E) none of these

Rationale: "explanation : t = 2 years r = 10 % td = ( bg × 100 ) / tr = ( 24 × 100 ) / ( 2 × 10 ) = 12 × 10 = rs . 120 td = ( pw × tr ) / 100 ⇒ 120 = ( pw × 2 × 10 ) / 100 ⇒ 1200 = pw × 2 pw = 1200 / 2 = rs . 600 answer : option a"
Answer: A