Person A started a business by investing Rs. 65,000. After a few months, B joined him by investing Rs. 50,000. Three months after the joining of B, C joined the two with an investment of Rs. 55,000. At the end of the year, A got 50% of profit as his share. For how many months did A alone finance the business?
A. 2
B. 3
C. 5
D. 4
Answer: Option B
Solution (By Examveda Team)

A got 50% of share and remaining 50% divided in B and C
∴ 10x + 30 + 11x = 156
⇒ 21x = 126
⇒ x = 6
B did for = 9 months
C did for = 6 months
∴ A alone did business for = 3 months
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