A started a business with Rs.21,000 and is joined afterwards by B with Rs.36,000. After how many months did B join if the profits at the end of the year are divided equally?
A.5
FeedbackSuppose B joined after x months then, 21000*12=36000*(12-x) 36x = 180 x = 5
B. 6
C.8
D.9
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