একটি মাঠের প্রস্থ আরও ১০ মিটার বেশি হলে এটি ১০০০০ বর্গমিটার ক্ষেত্রবিশিষ্ট বর্গাকার মাঠ হত । মাঠটির প্রস্থ কত মিটার ?
A. ৮৫
B. ১০০
C. ৯০
D. ১০৫
সঠিক উত্তরঃ
C.
৯০
Explanation:
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