Each of A, B, C and D need a umique
time to do a certain work. A can do the work in x days and B can
do the work in 2x days. A started the work and do it for `22 2/9` days
then he is replaced by B and B completed remaining work in same
time as C and D together can complete the whole work.
The ratio of the efficiency of C and D is `4: 5`. If C and D work for
alternative days starting form C then they can do the total work
in `44 1/2` days.

Options

A. 33.33
B. 66.66
C. 30
D. 70