There are 10 lanes in the bowling alley where Harold bowls. He wants to make a scale

There are 10 lanes in the bowling alley where Harold bowls. He wants to make a scale drawing of the bowling alley using a scale of 3 cm to 15 ft. One lane,
including gutters, is 60 ft long and 5 ft wide. What will the width of all 10 lanes on
his drawing be?
please help this is urgent!! provide good for explanation✨