老师 不好意思 请问这道题怎么解答。遇到了好几次 不会算

问题如下：

The maximum loan amount that the Fund can obtain on the New York City office building is closest to:

选项：

A.A.USD111.5 million. B.B.USD180.1 million. C.C.USD184 million.

解释：

B is correct. Based on the LTV, the maximum loan amount would be 65% of 283 million, or 183.95 million, with a DSC of 1.62×, which is below the 1.65 minimum. However, with a minimum DSC of 1.65×, the maximum debt service would be 15,600,000/1.65 = 9,454,545. This amount is the mortgage payment that would result in a 1.65× DSC for an interest-only loan. If the loan is interest only, then we can obtain the loan amount by simply dividing the mortgage payment by the interest rate. Therefore, the loan amount would be 9,454,545/0.0525 = 180,086,580 (= 180,100,000 after rounding). Because the loan amount based on the minimum DSC results in a lower loan amount, that would be the maximum amount that could be borrowed.

Response A is incorrect because USD117,100,000 is incorrectly calculated as follows:

283,000,000/1.65 = 180,086,580.180,086,580 × 65% = 111,484,848 (= 111,500,000 after rounding).

C is incorrect because USD184 million is the rounded loan amount based on the maximum LTV of 65%. Because the loan amount based on the minimum DSC results in a lower loan amount, USD180,086,580 ($180,100,000 rounded) would be the maximum loan amount that could be borrowed.