SSC CGL – Combined Graduate Level Examination · প্রশ্ন 72
A garden is circular with a border 3 m wide around it. The garden area alone is 379.94 m². What is the radius of the garden?
উত্তর দেখান ও ব্যাখ্যা
উত্তর: (B) 11 m
ব্যাখ্যা
πr² = 379.94 gives r² ≈ 121, so r = 11 m. (The stated total including the border is inconsistent, but the garden area fixes r.)