A table having an approximate length of 1m was measured by four people. They all measured it in different ways. Which of them would measure the length with the greatest accuracy?

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Sita measured it using a 5m long measuring tape.

Ram measured it with a half-meter-long thread.

Rita measured it using her hand span.

Gita measured it with a 15 cm scale.

answer is D.

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Detailed Solution

Ram may not get the most accurate length as a thread does not have markings on it.
Gita can't measure the length of the table in one go because her scale only measures in 15-cm increments. Therefore her measurement may deviate from the actual measurement.
Rita also cannot measure the table with the utmost accuracy since she does not use a standard unit of measurement.
Sita would get the most accurate length. The reason is that in this case the length of the table can be measured in one go because the measuring tape is longer than the table.

Therefore, Sita will measure the length of the table with the greatest accuracy.

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