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Question
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
ANSWER : 4
Descrption
<p><span style = "box - sizing: border - box; font - size: 18px; color: #212529; font - family: bangla, sans - serif; text - align: justify; background - color: #ffffff;">Here, 4 hours = 240 minutes</span></p> <p><span style = "box - sizing: border - box; font - size: 18px; color: #212529; font - family: bangla, sans - serif; text - align: justify; background - color: #ffffff;">Now, 50 workers can dig the hole in 240 minutes</span></p> <p><span style = "box - sizing: border - box; font - size: 18px; color: #212529; font - family: bangla, sans - serif; text - align: justify; background - color: #ffffff;">So, 30 workers can dig the hole in 240×50/30 = 400 minutes = <strong>6 hours 40 minutes</strong></span></p>
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