A began business with Rs.27000 and was joined afterwards by B with Rs.36000. When did B join if the profits at the end of the year were divided in the ratio of 2:1? Select the correct option:  A) 1.5  B) 6.5  C) 7.5  D) 8  E) 2
27*12 : 36*x = 2: 1   x = 4.5   12 -4.5= 
<gadget id="calculator">12 -4.5</gadget>
<output>7.5</output>
7.5   Answer: 7.5
<result>C</result>
A began business with Rs.27000 and was joined afterwards by B with Rs.36000. When did B join if the profits at the end of the year were divided in the ratio of 2:1?