List of top Physics Questions on Units and measurement asked in KEAM

The ratio of distance of the sun from the earth to that of the moon from the earth is in the order:
Suppose a force is given by the expression=kx2;where x has the dimension of length.The dimension of k is:
The final result of the sum of the numbers 523.32, 1.21524 and 107.3 rounded to correct significant figures is
Which one of the following is not a derived unit ?
A plate has a length $ 5\pm 0.1\text{ }cm $ and breadth $ 2\pm 0.01\text{ }cm $ . Then the area of the plate is: