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Five boys or 9 girls can do a piece of work in 19 days.In how many days can 3 boys and 6 girls do this work?

Five boys or 9 girls can do a piece of work in 19 days.In how many days can 3 boys and 6 girls do this work? Correct Answer 15

বিকেন্দ্রণ, বিকেন্দ্রীকরণ - [বিশেষ্য পদ] কেন্দ্রের প্রাধান্য হ্রাসকরণ, কেন্দ্র হতে দূরে অপসারণ।

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