$124>>>>>>>>>$

In a siphon, the summit is $5$ m above the water level in the tank from which the flow is being discharged. If the head loss from the inlet to the summit is $2\mathrm{.}5$ m and the velocity head at the

summit is $0\mathrm{.}5$ m$,($taking y $=10$ appropriate units$)$

the pressure head at the summit is$\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_?$

$!!!!!!!!!!!!!!!!!!!!!!!!!$