While aligning a hill road with a ruling gradient of $6 \%,$ a horizontal curve of radius $50 \mathrm{~m}$ is encountered. The grade compensation (in percentage, up to two decimal places) to be provided for this case would be

While aligning a hill road with a ruling gradient of $6 \%,$ a horizontal curve of radius $50 \mathrm{~m}$ is encountered. The grade compensation (in percentage, up to two decimal places) to be provided for this case would be

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