किसी अज्ञात मात्रा की उसी प्रकार की कुछ ज्ञात निश्चित मात्रा से तुलना कहलाती है : , The comparison of an unknown quantity with some known fixed quantity of the same kind is called:

Solution

C. Measurement

Explanation

The comparison of an unknown quantity with some known fixed quantity of the same kind is called moasuiv ment.