An investor gathered the following information regarding three stocks, which are not in the market portfolio: Stock Actual Return Standard Deviation Beta A 22% 25% 1.1 B 17% 30% 1.4 C 19% 23% 0.8 The return on the market portfolio is 15% with a standard deviation of 21%, and the risk-free rate of return is 4%. Which stock should the investor least likely add to the market portfolio

in t= 3.77 min they will met each other

Explanation:

If your friend and you start at coordinate x₁ and x₂ respectively,  then if your friend is at a distance xF from the bottom

xF= x₁ - v₁*t = 1800 ft - 250 ft/min *t

and you are at a distance xM from the bottom

xM= x₂ + v₂*t = 100 ft + 200 ft/min *t

then both find at xM=xF

x₂ + v₂*t =  x₁ - v₁*t

t= (x₁ - x₂)/(v₁+v₂) = (1800 ft - 100 ft)/(250 ft/min+ 200 ft/min ) = 3.77 min

t= 3.77 min