Mr. Birdie has worked hard as a Math teacher all his life and has saved 42 a million dollars. A savings bank
has offered him 4% interest per annum on his savings.
Mr Birdie is retiring at 65 and wants enough to live on
until his 90th birthday. He figures that he will have
$1666.66 a month.
Can you explain where his calculation may have come
from if it is correct. Explain your thoughts in the box
below.