Answer:
7 telephone poles
Explanation:
Given that:
Length of track = 5(3/5) feet long
No pole is needed at the atart of the track
Poles are however placed every 4/5 foot apart
Number of telephone poles needed :
Length of track / distance between each placed poles
= length of track = 5(3/5) = 28/5 feet
Distance between poles = 4/5 foot
Hence,
(28 /5) ÷ (4 /5)
= 28 /5 × 5 / 4
= (28 * 5) / 20
= 140 / 20
= 7
Number of poles required = 7