Fill in the blanks:
Ratio is the number. It has (_____) unit
Ratios don't have any unit, it is the simplest form of a fraction that can be defined as the comparison between two same quantities.
Fill in the blanks :
A number which has either 0 or 5 in its unit place is divisible by ………….. .
If the number has 1 or 9 at its unit place, then its square will always have ___ in its unit place.