MATH NEED HELP

hi guys quick question about this math question please help 

You and 5 friends saved money for 2 years to go to the Kruger National Park. 

Each of you paid R2000 into ONE account @ 12% simple interest per year.

What is the amount available in the account?

Hint:  Use the following formula for simple interest:

A  =  P(1 + i x n)