Q. Three pipes A, B, and C can fill a tank in 12, 15, and 20 hours respectively when working independently. If all three pipes are opened simultaneously but pipe C is closed 2 hours before the tank gets completely filled, how much time (in hours) will it take to fill the tank?

तीन पाइप A, B और C स्वतंत्र रूप से काम करते हुए एक टैंक को क्रमशः 12, 15 और 20 घंटे में भर सकते हैं। यदि तीनों पाइप एक साथ खोल दिए जाएँ लेकिन पाइप C को टैंक के पूरी तरह भरने से 2 घंटे पहले बंद कर दिया जाए, तो टैंक को भरने में कितना समय (घंटों में) लगेगा?

6 hours
6 घंटे

7 hours
7 घंटे

8 hours
8 घंटे

9 hours
9 घंटे

Explanation will be available soon. Please stay tuned.

व्याख्या जल्द ही उपलब्ध होगी। कृपया बने रहें।

Your support helps keep Exam Achiever 100% free for students preparing for exams.

Thanks for your support!

Your support helps keep Exam Achiever 100% free for students preparing for exams.

Thanks for your support!

Take our Free timed mock tests to sharpen your skills and boost your confidence!