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+
+clc
+clear
+//Input data
+P=10000//Power in kW
+h=25//Head in m. In textbook it is given wrong as 2 m
+N=135//Speed in rpm
+h1=20//Head in m
+
+//Calculations
+Ns=((N*sqrt(P))/h^(5/4))//Specific speed
+N1=sqrt(h1/h)*N//Speed in rpm
+P2=P/(h/h1)^(3/2)//Power in kW
+
+//Output
+printf('Specific speed is %3.1f \n Normal speed is %3.1f rpm \n Output under a head of %i m is %3.0f kW',Ns,N1,h1,P2)