Question

Find the sub-duplicate ratio of 9:16 ?

Answer 1

`3:4`

Explanation:

Sub-duplicate ratio of any ratio is ( as the name suggests ) only partially duplicate.

For eg. `16:81 to 4:9`

The sub-duplicate ratio of `16:81` is `4:9`.

For the first few seconds you would think that `16/81 = 4/9`

but this is actually wrong. This is how the name comes, the sub-

duplicate ration looks equivalent ( equal ) to the given ratio but is

actually very different thatn that of the given ratio.

For some more information on this topic : http://www.math-only-math.com/types-of-ratios.html