A team of 50 technicians is tasked with finishing a project in 25 days. After 15 days of work, it was discovered that only 1/5th of the project was completed. How many additional technicians need to be hired to ensure the project is completed on schedule?

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250

Correct

300

350

400

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Explanation

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Official Explanation

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Let's assume each technician can complete 1 unit of work per day. In 15 days, 50 technicians will accomplish 50 * 15 units of work, which equals 750 units. Since this 750 units represents 1/5th of the total project, the overall project consists of 5 times 750, resulting in 3750…

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YudhishthirAug 25, 2024

Can you explain more?

What this question tests

What it tests

Your ability to combine individual work rates, usually by working with the fraction of a job completed per unit of time.

Common trap

Adding the times instead of the rates, or forgetting to take the reciprocal when combining rates.