Three taps T, U and V can fill a tank in z, (z + 3) and (z + 8) hours respectively. They are opened alternatively for one hour each starting with Tap T followed by U and V respectively. Find the value of z, if the tank gets filled completely in 15 hours.

Three taps T, U and V can fill a tank in z, (z + 3) and (z + 8) hours

1.	Three taps T, U and V can fill a tank in z, (z + 3) and (z + 8) hours respectively. They are opened alternatively for one hour each starting with Tap T followed by U and V respectively. Find the value of z, if the tank gets filled completely in 15 hours.
A.	15
B.	20
C.	10
D.	18
E.	12
Answer» F.

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Three taps T, U and V can fill a tank in z, (z + 3) and (z + 8) hours respectively. They are opened alternatively for one hour each starting with Tap T followed by U and V respectively. Find the value of z, if the tank gets filled completely in 15 hours.

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