The present worth of Rs.1404 due in two equal half-yearly instalments at 8% per annum. Simple interest is:  Select:
A) 1320	B) 1300	C) 1325	D) 120	E) none of these

Rationale: "explanation : required sum = pw of rs . 702 due 6 months hence + pw of rs . 702 due 1 year hence = rs . [ 100 × 702 / 100 + ( 8 × 12 ) + 100 × 702 / 100 + ( 8 × 1 ) ] = rs . 1325 answer : c"
Answer: C