Question

The length of one rod is $2.53cm$ and that of the other is $1.27cm$. The least count of the measuring instrument is $0.01$cm. If the two rods are put together end to end, find the combined length.

Answer 1

Since, the Least count is $0.01$

we can directly add the $2$ lengths

$\Rightarrow 2.53+1.27=2.00+0.53+1.00+0.27=2+1+0.80=3.80cm$