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Three pipes A, B and C can fill a cister...

Three pipes A, B and C can fill a cistern in 15,24 and 36 minutes respectively. If pipe D can drain a full tank in 1 hour. how long will it take for the tank to be filled if all the four pipes are kept open together ?
तीन पाइप A, B और Cक्रमश: 15, 24 और 36 मिनटों में टंकी को भर सकते हैं| वही, पाइप D पूरे भरे टैंक को 1 घंटे में खाली कर सकता है| यदि सभी चार पाइपों को एक साथ खुला रखा जाता है तो उस टैंक की भरने में कितना समय लगेगा?

A

`9(1)/(8) ` hours

B

`5(12)/(25)` hours

C

`7(2)/(3)` hours

D

`8(16)/(43)` hours

Text Solution

Verified by Experts

The correct Answer is:
D
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