Two common names for streets are First Street and Main Street, with 12485 streets bearing one of these names. There are 2105 more streets named First Street than Main Street. How many streets bear each name?

Question

Two common names for streets are First Street and Main Street, with 12485  streets bearing one of these names. There are 2105  more streets named First Street than Main Street. How many streets bear each name?

Steve · Answer

If there are x named Main, then x + x+2105 = 12485. Now just solve for x.