Answer:volume j(m³)= t/πd²xV
Explanation:The basic equation for resolving average discharge is Q=AV, where Q is discharge, V is velocity and A is the area.
Recall that Q=vt. Where Q= quantity, v= velocity and t= time. So, the outcome of volume j(m³)= t/Q, since Q= av we say;
j(m³)= t/πd²/4xV.
NB: Volume of a circle is πr² but we are given diameter so, r=d/2 that is how we come from πr² to πd²/4.