For this case what we must do is a division using the following relationship:
\(N = (total amount) / (partial amount)\)Substituting values we have:
\(N = (4) / (2/5)\)
Rewriting the fraction we have:
\(N = (20) / (2)\)
Simplifying we have:
\(N = 10\)
Answer:
The number of times repeated 2/5 for 4 is:
10