"An area of 100 sq. cm on the map represents an area of 49 sq. km on the field. The R.F. of the
Channel: Doubtnut
Date: 2020-04-05

"An area of
 100 sq. cm on the map represents an area of 49 sq. km on the field. The R.F.
 of the scale to be used is
`1/(10000)`
(b) `1/(20000)`
(c) `1/(49000)`
(d) `1/(70000)`"