৪টি গরু ৪ দিনে ৪ বালতি দুধ দিলে, কত দিনে ৮ টি গরু ৮ বালতি দুধ দিবে?
A. 16
B. 2
C. 8
D. 4
সঠিক উত্তরঃ
D.
4
Explanation:
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