Answer:
2.5 inches slumped concrete.
Step-by-step explanation:
Slump:
The concrete slump measure the consistency of fresh concrete before it sets.It check work ability of concrete .It can also used to indicate improper batch. This is important due to simplicity and simple method.Slump is used to ensure different loads of concrete under conditions.
basically it is a downturn that going downhill.
So top of concrete slumped is 2.5 inches as it is given .
