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Question
The first rail track is 18 yards long, the second is 6 yards shorter than that, and the third is 5 yards longer than the first track. Which rail track is shorter than 17 yards?
The first rail track is 18 yards long, the second is 6 yards shorter than that, and the third is 5 yards longer than the first track. Which rail track is shorter than 17 yards?
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Solution
The correct option is B Second rail track
Detailed step-by-step solution:
Length of first rail track = 18 yards
Length of second rail track = 6 yards shorter than 18 yards
= 18 − 6 = 12 yards
Length of third rail track = 5 yards longer than the first one
= 18 + 5 = 23 yards
So, the length of the second rail track is 12 yards and it is the only track shorter than 17 yards.
Detailed step-by-step solution:
Length of first rail track = 18 yards
Length of second rail track = 6 yards shorter than 18 yards
= 18 − 6 = 12 yards
Length of third rail track = 5 yards longer than the first one
= 18 + 5 = 23 yards
So, the length of the second rail track is 12 yards and it is the only track shorter than 17 yards.
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