If 60% of 70% of a number is 1680, find the number.

2800

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3000

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4000

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3600

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Solution

The correct option is B $4000$
Given, $60$ % of $70$ % of a number $= 1680$
$=> \frac{60}{100} \times \frac{70}{100} \times$ number $= 1680$
$=>$ number $= 4000$

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