Answer: Amount more paid by Yodhi is $50 each month.
Explanation:
Since we have given that
Initial amount of insurance premium per month = $500
Percentage of total cost of his family's health insurance paid by employer = 80%
Remaining % paid by Yodhi = 80%
Now, Amount of insurance premium per month increased to = $750
so, Difference between them becomes

so, amount paid by Yodhi more each month is given by

Hence, amount more paid by Yodhi is $50 each month.