[" Q.13Add "7.21,12.141,0.0028" and express the result to an.appropriate number of significant "],[" figures."]

Add 7.21, 12.141 and 0.0028 and express the result to an appropriate number of significant figures.

Add 7.21, 12.41 and 0.0028, and express the result the rsult to an appropriate number of significant figures.

Subtract 4.27153 from 6.807 and express the result to an appropriate number of significant figures.

Choose the correct option. The sum of 7.21, 12.141 and 0.0028 can be expressed upto appropriate number of significant figures as

Subtract 4.5xx10^(4)" from "7.9xx10^(5) and express the result to an appropriate number of significant figures.

The number of significant figures in 0.0035 is

The number of significant figures in 0.0500 are