Complex test cases 4-7 per day
Medium test cases 10-15 per day 
Normal test cases 20-30 per day

depend on project 
how it is complex

U r wrong harikumar,

Tester can never say these many test cases i can write per 
day. How can u tell this?

It all depends on Complexity & Size of the application and 
it also depends on Tester understanding.

I agree with you Mohan, because this is a stupid question. 
This is purly based on complexity of the functionality, so 
we can not say numberic number even if we try tto say the 
number that is wrong as well.

we can not say number of test cases which we can excute per 
day becauese it is always depends of the day deadline and 
based on client time management.

if i am wrong correct me ...