Elon Musk starts his new project related to A.I. in India, with a capital of $ 75000. After some time Vill Gates joins him with $ 37500. If the profits at the end of the year are divided in the ratio of 4 : 1, Then for how much period does Vill join?
1
6 months
2
5 months
3
8 months
4
7 months