Question

If two numbers are 28% and 70% of third number then find the percentage of first number to second number?

Answer 1

Answer:

Let the common number be X,

whose 28% is A, and 70% is B,

Step-by-step explanation:

So, A= 28% of X,

= 28×X/100,

= 7 X/25.

And B= 70% of X,

= 70 X/100,

=35 X/25.

So, I find the percentage,

$( \frac{7x}{25} \times \frac{50}{35x} \times 100)\% \\ = ( \frac{2}{5} \times 100)\% \\ = 40\%.answer$

Answer 2

Answer:

40%

Step-by-step explanation:

let the third no. =100

first no =28

second no. = 70

the percent = 2

$\frac{28}{70} \times 100 = 40\%$