1991 exam question

Thomas E. Meyer ( Thomas_E._Meyer@sedgus.com )
Thu, 15 Oct 1998 09:23:40 -0500

Looking for help with a 1991 exam question that comes from a 1991
exam. It is a LC Chapter 3 problem. It reads:

You are given the following information:
1. The force of mortality is constant for all ages.
2. The force of mortality equals the force of interest.
3. a bar angle 20 = 1.4 * a bar angle 10

(the terms above are a 20 year continuous annuity and a 10 year
continuous annuity)

Calculate the probability that (20) will die between the ages of 40
and 50.

a) Less than .085
b) At least .085, but less than .090
c) At least .090, but less than .095
d) At least .095, but less than .100
e) At least .100

My problems seem to lie in solving for del and/or using statement 3 to
get the answer.
Any help would be greatly appreciated.
Thanks