A began a business with Rs. 85,000. He was joined afterwards by B with Ks. 42,500. For how much period does B join, if the profits at the end of the year are divided in the ratio of 8 : 1 ?  Choose the correct choice from the following choices:
A) 6 months B) 3 months C) 2 months D) 8 months E) 9 months
Suppose B joined for x months . Then, ( 85000 * 12 )/(42500 * x) = 8. or x = (85000 * 12) / (42500 * 8)= 
<gadget id="calculator">(85000 * 12) / (42500 * 8)</gadget>
<output>3</output>
3.   So, B joined for 3 months.   Answer: 3 months
<result>B</result>
A began a business with Rs. 85,000. He was joined afterwards by B with Ks. 42,500. For how much period does B join, if the profits at the end of the year are divided in the ratio of 8 : 1 ?