Question

What number is 40% of 135​

Answer 1

54

Explanation:

40 ?

--- = -----

100 135

Cross Multiply then Divide.

54

---

135

Answer 2

54

Explanation:

So, the first thing we need to do here is set up a proportion:
`(40)/(100) =(x)/(135)`. This is because 40%=40/100, so if 135 was 100%, x would be 40% of that.

To solve the equation, first cross multiply.

`(40)/(100) =(x)/(135) --> (135*40)/(100x)`

`--> 5400=100x`

`x=54`

Checking your work:

40/100= 2/5

54/135= 2/5

This means your answer is correct.