Devi and Deva started the business with the investment in the ratio of 12:7 and the ratio of the investment period of Devi and Deva is x:6. At the end of the business, the profit share of Devi is Rs.1300 less than Deva and the total profit of the business is Rs.16900, then find the value of x?
A1
B2
C3
D4