A cylindrical can is rolled along the ruler shown in the diagram.0 cm 5 10 15 20 25 30 cmstarting position final positioncan rolledmark oncanThe can rolls over twice.What is the circumference (distance all round) of the can?A 13 cm B 14 cm C 26 cm D 28 cm
Question
A cylindrical can is rolled along the ruler shown in the diagram.0 cm 5 10 15 20 25 30 cmstarting position final positioncan rolledmark oncanThe can rolls over twice.What is the circumference (distance all round) of the can?A 13 cm B 14 cm C 26 cm D 28 cm
Solution
The question states that the cylindrical can rolls over twice from the starting position to the final position on the ruler. The distance from the starting position to the final position on the ruler is 30 cm.
Since the can rolls over twice, the distance it covers in one roll (which is the circumference of the can) is half of the total distance.
So, to find the circumference of the can, we divide the total distance by the number of rolls:
Circumference = Total distance / Number of rolls Circumference = 30 cm / 2 Circumference = 15 cm
Therefore, the circumference of the can is 15 cm. However, this option is not available in the choices given (A 13 cm B 14 cm C 26 cm D 28 cm). There might be a mistake in the question or the options provided.
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