Question 80 (iv)

Find the value of x, if
45 % of x is 405 marks.

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Solution

Given, 45% of x is 405 marks.
$∴ \frac{45}{100} \times x = 405 \Rightarrow x = \frac{405 \times 100}{45}$
$\Rightarrow x = 900$ marks

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