alleryਪਾਣੀ 30 cm ਇੱਕ ਘੇਰੇ ਵਿੱਚ ਡੂੰਘਾ-7 cm ਸਿਲੰਡਰ ਇੱਕ ਖਾਲੀ 22 × 15 cm ਬੇਸ ਟੈਂਕ ਨੂੰ ਭਰਦਾ ਹੈ; ਡੂੰਘਾਈ? π = 22/7।
A7 cm
B28 cm
C21 cm
D14 cm
Answer & Solution
Correct answer: D. 14 cm
ਟਰਾਂਸਫਰ ਕੀਤਾ ਵਾਲੀਅਮ ਹੈ (22/7) × 7² × 30 = 4620 cm ³, ਡੂੰਘਾਈ 4620 ÷ (22 × 15) = 14 ਸੈ.ਮੀ.
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