A began business with Rs. 1,250 and is joined afterwards by B with Rs. 3,750. When did B join if the profits at the end of the year are divided equally.
Explanation:
Let B joined for x months.
∴ PA : PB = IA × TA ∶ IB × TB
⇒ 1/1 = (1250 × 12)/(3750 × x)
⇒ x = 4
Hence, he joined after 12 - 4 = 8 months.
Hence, option (b).
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