A sum of money becomes 7/6 of itself in 4 years at a certain rate of simple interest. The rate per annum is? Choose the most appropriate option
A) 25/6	B) 5 5/7	C) 5 5/2	D) 5 5/8	E) 5 5/1
Let sum = x. Then, amount = 7x/6   S.I. = 7x/6 - x = x/6; Time = 4 years.   Rate = (100 * x) / (x * 6 * 4) = 25/6 %.   25/6nswer:25/6
<result>A</result>
A sum of money becomes 7/6 of itself in 4 years at a certain rate of simple interest. The rate per annum is?