Why can't it be 20 minutes instead of 7 minutes?
Md Ariful Islam
বিএসসি(সিএসই)
,
এমবিএ(মার্কেটিং)
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Dr. Md Rushad Rahman
এমবিবিএস(আরপিএমসি)
,
পিজিটি(মেডিসিন)
It can be if you want. It is just tradition that but most people do seven minutes, also some people may not want to leave people in there too long so that nothing bad happens.
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