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Question
The lengths of four pencils are measured using a large scale. Which of them is longest if head and tip of the pencil is at:
The lengths of four pencils are measured using a large scale. Which of them is longest if head and tip of the pencil is at:
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Solution
The correct option is C 9 cm and 30 cm
Length of first pencil = 21 - 1 = 20 cm.
Length of second pencil = 24 - 5 = 19 cm.
Length of third pencil = 31 - 11 = 20 cm.
Length of fourth pencil = 30 - 9 = 21 cm.
Thus, fourth pencil is longest.
9 cm and 30 cm
Length of first pencil = 21 - 1 = 20 cm.
Length of second pencil = 24 - 5 = 19 cm.
Length of third pencil = 31 - 11 = 20 cm.
Length of fourth pencil = 30 - 9 = 21 cm.
Thus, fourth pencil is longest.
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