দুটি সংখ্যার বর্গের সমষ্টি ৫২ এবং সংখ্যা দুটির গুনফল ২৪ হলে সংখ্যা দুটির বর্গের অন্তর হবে--
A. ২৮
B. ৫৫
C. ১৪০
D. ২০
সঠিক উত্তরঃ
D.
২০
Explanation:
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