Ravi invested certain amount for two rates of simple interests at 6% p.a. and 7% p.a. What is the ratio of Ravi's investments if the interests from those investments are equal? Choose the correct choice from the following answers
A) 7 : 8
B) 7 : 2
C) 7 : 1
D) 7 : 6
E) 7 : 3
Explanation:   Let x be the investment of Ravi in 6% and y be in 7%   x(6)(n)/100 = y(7)(n)/100   =&gt; x/y = 7/6   x : y = 7 : 6   Answer: 7 : 6
<result>D</result>
Ravi invested certain amount for two rates of simple interests at 6% p.a. and 7% p.a. What is the ratio of Ravi's investments if the interests from those investments are equal?