A began a business with Rs.85, 000. After some time B joined with Rs.42, 500. After 12 months the profits were divided in the ratio of 3:1. For how many months both A and B were together?
Answer: (4) none of these.
Let be the A joined for X months
Then, (85000 x 12) / (42, 500 x X) = 3/1
3X = 2 x 12
X = 24/3
X = 8 months.
Hence, the answer is (4) none of these.