John, Mona and Gordon, three US based business partners, joints invested in a business project to supply nuclear fuel to India. As per their share in the investment. Gordon will receive `2/3` of the profits 3 whereas John and Mona divide the remainder equally. It is estimated that the income of John will increase by $ 60 million when the rate if profit from 4% to 7%, What is Mona's capital? `$\ 2000\ m i l l ion` b. `$\ 3000\ m i l l ion` c. `$\ 5000\ m i l l ion` d. `$\ 8000\ m i l l ion`