If it takes 50 workers 4 hours to dig a hole, how long should it take 30 workers to dig the same hole?

2 hrs, 24 mins

6 hrs, 12 mins

5 hrs, 12 mins

6 hrs, 40 mins

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ব্যাখ্যা ও সঠিক সমাধান

উত্তর: 6 hrs, 40 mins

Here, 4 hours = 240 minutes Now, 50 workers can dig the hole in 240 minutes So, 30 workers can dig the hole in 240×50/30 = 400 minutes = 6 hours 40 minutes

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If it takes 50 workers 4 hours to dig a hole, how long should it take 30 workers to dig the same hole?

সম্পর্কিত বিষয় সমূহ

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