Question

8
finish the work, and also that taken by 1 man alone.
by train and the remaining by bus, she takes 10 minutes longer. Find the speed of
the train and the bus separately.
2.
Formulate
the
following
problems
as
a
pair
of
equations
,
and
hence
find
their
solutions
:
1
Ritu
can
row
downstream
20
km
in
2
hours
,
and
upstream
4
km
in
2
hours
.
Find
ber
speed
of
rowing
in
still
water
and
the
speed
of
the
current
.
(
1
)
2
women
and
5
men
can
together
finish
an
embroidery
work
in
4
days
,
while
3
women
and
6
men
can
finish
it
in
3
days
.
Find
the
time
taken
by
1
woman
alone
to
(
m
)
Roohi
travels
300
km
to
her
home
partly
by
train
and
partly
by
bus
.
She
takes
4
hours
if
she
travels
60
km
by
train
and
the
remaining
by
bus
.
If
she
travels
100
km​

Answer 1

Answer:

20kmph

if she travels by train and travels 100 km