Kamal and Dinesh invested in a business in the ratio of 5 : 7 respectively. After four months, Manohar entered the business with an investment of capital equal to that of Dinesh. What will be the ratio of their profits at the end of the year?
1
15 : 12 : 14
2
15 : 12 : 7
3
1 : 2 : 3
4
More than one of the above
5
None of the above