Question

A new road was added near Diana’s neighborhood the road is 5 miles long and the city plans to place a streetlight every 1/10 mile there already is a streetlight at the beginning of the new road how many streetlight will be placed on the new road

Answer 1

10 street lights each mile x 5 miles. equals 500 street lights.

the last statement is a little bit of a trick. there is a light at point 0. there are still 10 lights needed to make it to 1 mile. if there was not a street light at the beginning. then the answer would be 501