 
<translate> A ce Q ya zuba Rs. y. Sa'an nan, 50000/y = 4/6 ko y = [50000 x 6/ 4] = 75000. Amsar ƙarshe: (E). <eng> Suppose Q invested Rs. y. Then, 50000/y = 4/6 or y = [50000 x 6/ 4] = 75000. The final answer: (E). 