The banker's gain of a certain sum due 2 years hence at 10% per annum is Rs. 24. The present worth is:  Pick one
A) rs . 608 B) rs . 6076 C) rs . 600 D) rs . 602 E) rs . 601

Rationale: "t . d . = b . g . x 100 = rs . 24 x 100 = rs . 120 . rate x time 10 x 2 p . w . = 100 x t . d . = rs . 100 x 120 = rs . 600 . rate x time 10 x 2 answer : c"
Answer: C