find x, if 5 : 10 :: 40 : x.

Asked by rajinder.rs758 | 16th Sep, 2018, 03:48: PM

Expert Answer:

5 : 10 :: 40 : x means
5 upon 10 equals 40 upon x
i.e. 5 over 10 equals 40 over x
=> 5x = 400 (on cross multiplication)
This gives, x = 80.


Answered by  | 16th Sep, 2018, 05:19: PM