A sum of money deposited at C.I. amounts to Rs.6000 in 6 years and to Rs.7500 in 7 years. Find the rate percent?	Select the correct option:
A) 25 %	B) 20 %	C) 15 %	D) 10 %	E) 5 %

Rationale: "6000 - - - 1500 100 - - - ? = > 25 % answer : a"
Answer: A