Answer:
The value is 

Step-by-step explanation:
From the question we are told 
 The pipe diameter at location 1 is 

 The velocity at location 1 is 

 The diameter at location 2 is 

Generally the area at location 1 is 
 

=> 

=> 

=> 

Generally the area at location 1 is 
 

=> 

=> 

Generally from continuity equation we have that 
 

=> 

=> 

=> 
