Test Index

BECE Mathematics 2020 Paper

Question : 25

Total: 40

Solution:

Percentage

=

Value

/

Total

\times 100

Value here is the number of boys (480)

The percentage is 80

Let

x=

total number of pupils in the school

\Rightarrow 80=\frac{480}{x} \times 100

Get rid of the

x

dividing (fraction) by multiplying both sides of the equation by

x

\Rightarrow 80 \times x=480 \times 100

Divide both sides of the equation by 80

\Rightarrow x=\frac{480 \times 100}{80}

80 will go into 480,6 times

\Rightarrow x=\frac{480 \times 100}{80}=6 \times 100=600

Hence there are

600

pupils in the school

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