Question

Three friends decide to rent an apartment and split the cost evenly. They each paid $640 towards the total move in cost of first and last month's rent and a security deposit. If rent is $650 per month, how much was the security deposit?
a.
$10
b.
$207
c.
$620
d.
$1,270

Answer 1

Total paid = 3 × \$640 = \$1,920.
First + last month rent = 2 × \$650 = \$1,300.
Security deposit = \$1,920 − \$1,300 = \$620.

Answer: c. \$620