A started a business with Rs.25000 and is joined afterwards by B with Rs.30,000. After how many months did B join, if profit per annum is divieded equally?	Choose the most appropriate option:
A) 2 months B) 4 months C) 5 months D) 7 months E) 9 months
Given their profits are equal per annum so   25000*12=30000*x   x=10 months    12-10= 
<gadget id="calculator"> 12-10</gadget>
<output>2</output>
2 months   2 monthsNSWER:2 months
<result>A</result>
A started a business with Rs.25000 and is joined afterwards by B with Rs.30,000. After how many months did B join, if profit per annum is divieded equally?