For the new year, Mr. He simply spent 9/4 times more on gifts than his budget predicted.
He spent 405 euros.
His wife, Mrs. Simple spent 8/5 times more on gifts than he had anticipated.
She spent 5 euros less than Mr. Simple.
a) what was the total budget for the gifts from Mr. Simple and Mrs. Simple?
b) how much did they exceed the foreseen budget?
for question a) the answer is 430 euros
for question b) the answer is 375 euros
but what is the solution? can you help me?