If L = 2.01 m `pm` 0.01 m , what is 3 L ?

Explanation

Here , we should equate 3L with `(L+ L+ L)` to find out the absolute error in 3L.
Thus `3L = (3 xx 2.01) m pm 3 xx 0.01 m`
` = 6.03 m pm 0.03 m`