Answer:
50% is the answer.
Step-by-step explanation:
All three persons have different blood groups.
Mary has O blood type.
Her husband has B blood type.
Her father in law has A blood type.
As everyone has different blood groups and the child's group depends on parents blood groups so we have 2 options left.
Hence, the probability that the child will have type O blood is = 
=50%
700 - 35W = 450 + 15W
+35W +35W
700 = 450 + 50W
-450 -450
350 = 50W
7 = W
It will take 7 weeks for their bank accounts to be the same.
which tells you that the only critical point of
occurs at (2, 1), which does lie within the region
. At this point, we get
.
Next we check along the boundaries of
. They are the lines
with
,
with
, and
with
.
If
, then
, which is monotonically decreasing and must therefore attain its maximum at
and minimum at
. We get
and
.
If
, then
, which is also monotonically decreasing and attains its maximum at
and minimum at
. We get
and
.
If
, then
. We have
, which suggests an extremum occurs at (3, 2). We get
.
So
has a minimum value of 4 at (1, 4) and (5, 0), and a maximum value of 8 at (1, 0) and (3, 2).
The answer will be 587,328 whenever added!
