Evenly Divided Table Row

Question

How to make the first row in Table 1 evenly divided without manually manipulating the width of the table or td?

I tried google and found the trick for evenly divided column like Table 2. Any such trick for evenly divided row?
https://code.sololearn.com/WxXRs9Eb3a1R/?ref=app

Answer 1

https://code.sololearn.com/WfY9VceO34wL/?ref=app

Answer 2

Shadoff yes, thank you very much :)