alleryदो पाइप एक टंकी को क्रमशः 12 और 18 मिनट में भरते हैं। दोनों पाइपों को 6 मिनट के लिए चलाया जाता है। टंकी का कितना भाग भर जाता है?
A5/6
B1/2
C3/4
D2/3
Answer & Solution
Correct answer: A. 5/6
संयुक्त दर = 1/12 + 1/18 = 5/36 है, और 6 मिनट में भरा गया भाग = 6 × (5/36) = 30/36 = 5/6 है।
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