Question

An amount of Rs. 680 was invested at 6% rate of interest and another sum of money was invested at 10% interest. If the average interest on the total at the end of the year was 7.5%, how much was invested at 10%?
A.Rs. 408
B.Rs. 412.6
C.Rs. 267.5
D.None of these

Answer 1

Answer:₹408

Step-by-step explanation:

                   6%                         10%    

                           \                  /          

                                 7.5%        

                            /                \

                   2.5%        :           1.5%          

Now, 680/x = 2.5/1.5

Or, x = (680*3)/5

Hence, x = Rs. 408.