Question

The difference between a number divided by 3 and 4 is 20.

Answer 1

Make the number x. You turn the sentence into a mathematical equation and get;
(x/3)-4=20
And then you simplify.
x/3=24
x=72
Hope this helps. 

Answer 2

Answer:  The required number is 72.

Step-by-step explanation:  Given that the difference between a number divided by 3 and 4 is 20.

We are to find the number.

Let the number be represented by x.

Then, according to the given information, we have

$\dfrac{x}{3}-4=20\\\\\\\Rightarrow \dfrac{x}{3}=20+4\\\\\\\Rightarrow \dfrac{x}{3}=24\\\\\Rightarrow x=24\times3\\\\\Rightarrow x=72.$

Thus, the required number is 72.