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?

(1) Answers

Rent for 2 months (first and last) 650*2=1300 Divide that by the three of them= 433.33 is what each paid toward the rent.  640-433.33=206.67 Each of them paid 206.67 toward security deposit so *3 your answer is $620.01

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