alleryA ਅਤੇ B ਇੱਕੋ ਸੜਕ ਨੂੰ 45 ਅਤੇ 30 ਮਿੰਟਾਂ ਵਿੱਚ ਕਵਰ ਕਰਦੇ ਹਨ। ਉਹਨਾਂ ਦੀ ਗਤੀ ਦਾ ਅਨੁਪਾਤ ਹੈ
A3 : 2
B4 : 9
C9 : 4
D2 : 3
Answer & Solution
Correct answer: D. 2 : 3
ਗਤੀ ਸਮੇਂ ਦੇ ਨਾਲ ਉਲਟ ਬਦਲਦੀ ਹੈ, ਇਸ ਲਈ A : B = 30 : 45 = 2 : 3।
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