Question

Rick is setting up a modle train that is 5 3-5 feet long No telephone pole is needed at the start of track however along the track he places a telephone pole every 4-5 foot apart . How many telephone poles does he need ? (Input number values only )

Answer 1

Answer: He needs 7 telephone poles.

Step-by-step explanation:

Length of train track = $5\dfrac{3}{5}\ feet$

$=\dfrac{5\times5+3}{5}\ feet\\\\=\dfrac{25+3}{5}\ feet\\\\=\dfrac{28}{5}\ feet$

Distance between two telephone pole = $\dfrac45\ foot$

Now, Number of telephone poles = (Length of train track) ÷ (Distance between two telephone pole)

$=\dfrac{28}{5}\div \dfrac45\\\\=\dfrac{28}{5}\times \dfrac54\\\\=\dfrac{28}{4}=7$

So, he needs 7 telephone poles.