Explanation:
$
112
÷
8
h
=
X
÷
40
h
or
$
112
8
h
=
X
40
h
Cross-multiply:
X
×
8
h
=
$
112
×
40
h
Divide by
8
h
:
X
=
$
112
×
(
5
×
8
)
h
8
h
=
$
112
×
5
=
$
560
Note :
Of course you could have seen that
40
=
5
×
8
so the money would also be
5
×
as much.
Or you could have set up the ratio differently:
40
h
8
h
=
X
$
112
→
5
=
X
$
112
→
X
=
5
×
$
112
