A began a business with Rs. 85,000. He was joined afterwards by B with Rs. 42,500. For how much period does B join, if the profits at the end of the year are divided in the ratio of 3 : 1?
Pick one:
A) 8 months
B) 6 months
C) 4 months
D) 2 months
E) None
Sol.   Suppose B joined for x months. Then, 85000 * 12 / 42500 * x = 3/1 or   x = 85000 * 12 / 42500 * 3 = 8.   So, B joined for 8 months.   8 monthsnswer 8 months
<result>A</result>
A began a business with Rs. 85,000. He was joined afterwards by B with Rs. 42,500. For how much period does B join, if the profits at the end of the year are divided in the ratio of 3 : 1?