２問おねがいします。

1. A corporation with 5,000,000 shares of publicly listed stock reported total earnings of $7.20 per share for the first 9 months of operation. During the final quarter the number of publicly listed shares was increased to 10,000,000 shares, and forth quarter earnings were reported at $1.25 per share. What are the average annual earnings per share based on the number of shares at the end of the year?

(a)$1.83 (b)$2.43 (c)$4.85 (d)$8.45 (e)$9.7

2.q=3√3, r=1+2√3, s=3+√3
If q,r,and s are the numbers shown above, which of the following shows their order from greatest to least?

(a)qrs (b)qsr (c)rqs (d)sqr (e)srq

お恥ずかしい話しなのですが、両問題とも間違えました。しかも、なぜ下のような答えになるのか分かりません。先生方、よろしくご教授を。


答え；(1)b,(2)b