A started y business. After 4 months from the start of the business, B and C joined. The respective ratio between the investments of A, B and C was 4 : 6 : 5. If A’s share in annual profit was Rs. 250 more than C’s share, what was the total annual profit earned ?

Given , the ratio of investments of A,B,C is 4:6:5 . So , let them be 4k , 6k, 5k.
Given that A started the business. After 4 months from the start of the business, B and C joined.
i.e. A worked for 12 months while B , C worked for 8 months.
A’s share in annual profit was Rs. 250 more than C’s share.
So , A = C +250
12(4k) = 8(5K) + 250
48K = 40K + 250
k = 31.25
Total amount = 12(4K) + 8(6k) +8(5K)
= 136K
= 136*31.25
= 4250