Practice Test Discussion

What will come in place of question mark (?) in the following questions

$151.25% of 84 \times 24% of 85 = ?$

[Union Bank of India (PO), 2011]

424.2

488.4

482.8

428.4

None of these

Explanation

$\begin{array}{l} Here, \\ \Rightarrow 25% of 84 \times 24% of 85 = ? \\ \Rightarrow \frac{25}{100} \times 84 \times \frac{24}{100} \times 85 = ? \\ \Rightarrow 21 \times 20 .40 = ? \\ \Rightarrow ? = 428 .4 \end{array}$

Hence, Option D is correct.

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