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If a man can do 210 units of work in 7days. Find the number of days taken by him to complete the 570 units work.
1. 18 days
2. 19 days
3. 21 days
4. 29 days

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Correct Answer - Option 2 : 19 days

Given:

210 units of work completed in 7 days

Calculation:

As, 210 units of work is completed in 7 days.

1 unit of work is done in (7 ÷ 210) days

∴ 570 units of work is done in = (7 ÷ 210) × 570

\( {570 \ \over 30}\)

= 19 days

∴ The number of days taken by man to complete 570 units of work is 19 days.

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