Whether the given ratios are equivalent ratios or not. Given: 610 and 25

Calculation:
Equivalent ratios are two ratios which have same relationship between the numbers.
Multiply both numbers of first ratio by the second number of second ratio and multiply both numbers of second ratio by second numbers of first ratio.
The given ratios can be simplified further as:
${\displaystyle =\frac{6\times 5}{10\times 5}}$
${\displaystyle =\frac{30}{50}}$
and
${\displaystyle =\frac{2\times 10}{5\times 10}}$
${\displaystyle =\frac{20}{50}}$
As, both the results are not equal. The given ratios are not equivalent.

Answer is given below (on video)