10 men and 15 women together can complete a work in 7 days. It takes 100 days for one man alone to complete the same work. How many days will be required for one woman alone to complete the same work?\nOptions:\n(A) 127 days\n(B) 667 days\n(C) 177 days\n(D) 187 days\n(E) 350 days Hmmm, my stream of consciousness:
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1 man's 1 day work = 1/100\n(10 men + 15 women)'s 1 day work = 1/7\n15 women's 1 day work = (1/7 - 10/100) = 3/70\n1 woman's 1 day work = 1/350\n1 woman alone can complete the work in 350 days. So, the answer is (E).
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