Find the ratio of the following:
33 km to 121 km
Ratios are used to compare quantities which have same units
Since units of the given numbers are the same (in km), hence we can find the ratio.
Ratio of 33 km to 121 km= 33121
=33÷11121÷11=311=3:11
[Dividing numerator and denominator by HCF of 33 and 121 i.e. 11]