ভারসাম্য রক্ষা করতে নিচের চিত্রের বামদিকে কত ওজন রাখতে হবে?
A. ৪ কেজি
B. ৬কেজি
C. ৮ কেজি
D. ১০ কেজি
সঠিক উত্তরঃ
B.
৬কেজি
Explanation:
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