prob stat: The weighted mean of the 2 #s 30 & 15 is 20.

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If the weightings are 2 & x respectively, find x.

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কেন ৩৫-এর পর অনেক নারীর পরকীয়া করার ইচ্ছা জাগে?🫢 (এক ভয়ঙ্কর নিষিদ্ধ সত্য!)

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কেন ৩৫-এর পর অনেক নারীর পরকীয়া করার ইচ্ছা জাগে?🫢 (এক ভয়ঙ্কর নিষিদ্ধ সত্য!)

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