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BECE Mathematics 2017 Paper
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© africaexams.com
Question : 2
Total: 40
If
21
:
2
x
=
7
:
12
, find the value of
x
.
10
12
15
18
Validate
Solution:
Change the ratios to fractions and solve for the value of
x
Cross multiply and solve for
x
2
x
×
7
=
21
×
12
Divide both sides of the equation by
2
×
7
to make
x
the subject since
2
×
7
will cancel each other
x
=
3
×
6
=
18
© africaexams.com
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