Answer:
Tyler is right
Step-by-step explanation:
Given that:
Lenght of wooden plank used = 3.5 feets
Placement of tick marks = 1 1/3 inches apart
Number of tick marks placed = 20
Recall:
1 foot = 12 inches
Hence, length of wooden post in inches :
3.5 * 12 = 42 inches on length
Total length covered by the ticks placed :
1 1/3 inches * Number of ticks placed
1. 333 * 20 = 26.6667 inches
Unmarked length = length of post - length covered by tickmark
Unmarked length = (42 - 26.6666) inches
Unmarked length = 15.3333 inches.
Hence,
Within 15 - 16 inches are yet to be marked.
