Answer:
Carlos deposit $240,000 in bank A , $220,000 in bank B and $230,000 in bank C .
Explanation:
The total amount Carlos has $690,000
since, FDIC insurance limit per depositor per bank is $250,000
So, Carlos can't deposit $690,000 in one bank directly.
If Carlos deposit $240,000 in bank A
then he left with $690,000 - $240,000 =$450,000
we divide $450,000 =$220,000 + $230,000
So, Carlos deposit $220,000 in bank B and $230,000 in bank C
Hence, Carlos deposit $240,000 in bank A , $220,000 in bank B and $230,000 in bank C .