Question $4.$ The share of a certain stock paid a dividend of Rs$.3\mathrm{.}00$ last year. The dividend is expected to grow at a constant rate of $8$ percent in the future. The required rate of retum on this stock is considered to be $15$ percent. How much should this stock sell for now? Assuming that the expected growth rate and required rate of retum remain the same, at what price should the stock sell $3$ years hence?