試題詳解

296. An actuary compiles the following information about a portfolio of life insurance policies:
i) There are 150 more policies on males than there are on females.
ii) There are 100 more policies on female nonsmokers than there are on male nonsmokers.
iii) There are 350 policies on smokers.

Calculate the number of policies on female smokers within this portfolio.
(A) 50
(B) 100
(C) 200
(D) 250
(E) 300