Question
How many pillars are needed to construct a bridge 300 meters long, if the pillars? are at a distance of 12 ½ meters each
A. 22
B. 25
C. 24
D. None of these
Answer: B
Solution:
300 ÷ 25/2 + one pillar
= 300 * 2/25 + one pillar
= 25
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