Question

A
model
for
the
number
N
of
people
in
a
sub
-
urban
community
who
have
heard
a
certain
rumo
u
r
is
N
=
P
(
1
−
1
e
0
.
10d
)
where
P
is
the
total
population
of
the
community
and
d
is
the
number
of
days
that
have
elapsed
since
the
rumo
u
r
began
.
In
a
community
of
2
000
residents
,
how
many
days
will
elapse
before
7
50
have
heard
the
rumo
u
r
?
(
To
the
nearest
whole
number
)

Answer 1

Abe tuje typing karni nahi aati kya