alleryদুটো বেজে কুড়ি মিনিটে, কাঁটা দুটির মধ্যবর্তী কোণ কত ডিগ্রি?
A70°
B50°
C40°
D60°
Answer & Solution
Correct answer: B. 50°
ঘণ্টার কাঁটাটি 60° + 10° = 70°-এ এবং মিনিটের কাঁটাটি 120°-এ থাকে, সুতরাং কোণটি হলো 50°।
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