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The thickness of the bottom is

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A cistern of capacity 8000 litres measures externally 3.3 m

A chemical plant has four tanks

(A, B, C and

D), each contai

(A, B, C and

D), each contai

Two pipes A and B can separately fill a cistern in 60 min an

A cistern is filled by a tap in 3 1/2hours.

Due to leak in

Due to leak in

Two pipes A and B can separately fill a cistern in 10 and 15

Two pipes A and B can separately fill a cistern in 10 and 15

A cistern has a leak which would empty the cistern in 20 min

If KMT = 100, LITRES = 5.0, PCOST = 28.0 and OPCOST = 70.0 w

How much time will the leak take to empty the full cistern

I

I

A class consists of both boys and girls along with a teacher