Answer:
His savings were of $4,200.
Step-by-step explanation:
Mr. Hughes gave 5/14 of his savings to his son, 2/3 of the remainder to his daughter, and the rest to his wife:
This means that the son and daughter amount is:

As
is the remained that his son did not get. So

Fraction his wife got:

If his wife got $900, what were his savings?
Total savings are x, wife got
of x. So





His savings were of $4,200.