 
<translate> Were ya na Q tinyere Rs. y. Mgbe ahụ, 50000/y = 4/6 ma ọ bụ y = [50000 x 6/ 4] = 75000. Azịza ya bụ: (E). <eng> Suppose Q invested Rs. y. Then, 50000/y = 4/6 or y = [50000 x 6/ 4] = 75000. The final answer: (E). 