Question

Which of the following scales is largest
one ?
a) 1 cm = 50 m
b) 1:42000
c) R.F. =300000
d) 1 cm = 50 km​

Answer 1

Answer:

a) (1 cm = 50 m) = 1 cm : 5000cm

If we take 1 cm in each case -

b) 1:42000 = 1 cm : 42000cm

c) R.F. = 300000. = 1 cm : 30000 cm

d) (1 cm = 50 km) = 1 cm : 500000 cm

The scale 1 cm = 50 km is the largest

Answer 2

Answer:

a) 1 cm = 50 m scale is the largest one.

Explanation:

• The R.F refers to the representative fraction that can be defined as the ratio between the distance on the map to the distance on the ground.

• The R.F or representative fraction scale for option (b) is $\frac{1}{42000}$.

• The R.F for option (c) can be calculated as $\frac{1}{30000}$.

• The R.F for option (d) can be calculated as $\frac{1}{5000000}$.

• The R.F for option (a) can be calculated as $\frac{1}{5000}$.

• Arranging the above calculated R.F values from ascending to descending order, we will get

$\frac{1}{5000}$ > $\frac{1}{42000}$ > $\frac{1}{30000}$ > $\frac{1}{5000000}$.

• The denominator is the least in option (a) 1 cm = 50 m.

Hence Option (a) 1 cm = 50m is correct.