Question

the difference between 70% and 55% of a number is 72 the number is

Answer 1

here is your answer...

Answer 2

Answer: The number is 480

Step-by-step explanation:

Let the number be x

Now as given the difference between 70% and 55% of a number is 72

Therefore we have

$70\% \text{ of } x - 55\% \text { of } x= 72\\\\\Rightarrow \dfrac{70}{100} x- \dfrac{55}{100} x=72\\\\\Rightarrow \dfrac{70x-55x}{100} =72\\\\\Rightarrow \dfrac{15x}{100}=72\\\\\Rightarrow x= 480$

therefore the number whose difference between 70% and 55% of a number is 72 is 480

Hence, the number is 480