A sultan arranged his wives in order of increasing seniority and presented each with a gold ring. Next, every third wife, starting with the second, was given a second ring. Of the wives with two rings, every third one starting with the second received a third ring, and so on in this manner. His most senior and most cherished wife was the only one to receive 10 rings. How many wives did the sultan have

i believe the answer is d.

hope it you! : d

required rate of return = 0.166 = 16.6%

step-by-step explanation:

under the capital asset pricing model (capm), the required or expected rate of return for a particular security or asset is given using the formula:

required rate of return = risk-free rate + beta*(market risk premium)

we are given that;

risk-free rate = 4% = 0.04

beta = 1.4

market risk premium = 9% = 0.09

we simply plug these values into the above formula;

required rate of return = 0.04 + 1.4*(0.09)

required rate of return = 0.04 + 0.126

required rate of return = 0.166 = 16.6%