alleryਮਿੰਟ ਸੂਈ 90° ਵਿੱਚੋਂ ਘੁੰਮਦੀ ਹੈ। ਕਿੰਨਾ ਸਮਾਂ ਬੀਤ ਗਿਆ ਹੈ?
A30 min
B10 min
C15 min
D20 min
Answer & Solution
Correct answer: C. 15 min
6° ਪ੍ਰਤੀ ਮਿੰਟ ਤੇ, 90° 15 ਮਿੰਟ ਲੈਂਦਾ ਹੈ।
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