A and B started a business by investing ₹ 20000 and ₹ 25000, respectively. After 4 months B left and C joined by investing ₹ 15000. At the end of the year, there was a profit of ₹ 23000 What is C's share?

A's share : B's share : C's share
= (20000 x 12) : (25000 x 4) : (15000 x 8)
= 240000 : 100000 : 120000
= 24 : 10 : 12 = 12 : 5 : 6
Let A's share = 12N
B's share = 5N
C's share = 6N
According to the question.
12N + 5N + 6N = 23000
⇒ 23N = 23000
∴ N = 23000/23 = 1000
∴ C's share = 6N = 6 x 1000 = ₹ 6000