What sum of money will produce Rs.90 as simple interest in 4 years at 3 1/2 percent?
Options
A) 263	B) 500	C) 367	D) 642.9	E) 339

Rationale: "90 = ( p * 4 * 7 / 2 ) / 100 p = 642.9 answer : d"
Answer: D