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Question

The circle graph above shows how Davids monthly expenses are divided. If David spends $450 per month for food, how much does he spend per month on his car?
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A
$20
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B
$320
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C
$360
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D
$400
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E
$450
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Solution

The correct option is C $360
Let x be the total monthly expenses of David.
From the circle graph,
Expenses spent on food per month = 25% (Total monthly expenses)
= 25100 × x
Given, expenses spent on food per month = 450$
From above,
25100 × x = 450$
x = 4 × 450$
x = 1800$

Expenses spent on his car per month = 20% (Total monthly expenses)
= 20100 × x
= 20100 × 1800$
= 360$

Therefore, expenses David spend per month on car is 360$$'$.

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