If A and B invest some amount for the same time and the ratio of their profit's after one year is 5:x, if B would have joined A after 6 months the ratio of their profit's (a:b) after one year is 1:2. Find the value of x.
20
Let the investment of A be a.
Let the investment of B be b.
Investment of A ×time of investment of AInvestment of B ×time of investment of B = Profit of APtofit of B ab = 5x
a×12b×6 = 12
x = 20