Karan needs to choose between two gym plans. He can either pay a $
150
$150dollar sign, 150 joining fee and a
$
10
$10dollar sign, 10 monthly fee, or he can pay a
$
50
$50dollar sign, 50 joining fee and a
$
30
$30dollar sign, 30 monthly fee.
On what month will the cumulative costs of the plans be equal, and what will those total costs be?