42 m দৈর্ঘ্যের রাস্তায় 2m অন্তর একটি করে চারা লাগালে কতটি চারা লাগবে?
A. 22
B. 21
C. 23
D. 24
সঠিক উত্তরঃ
A.
22
Explanation:
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