alleryमिनट वाली सुई 90° घूमती है। कितना समय बीत चुका है?
A30 मिनट
B10 मिनट
C15 मिनट
D20 मिनट
Answer & Solution
Correct answer: C. 15 मिनट
6° प्रति मिनट की दर से, 90° घूमने में 15 मिनट का समय लगता है।
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