Question

The number that must be added to ea
the numbers 8, 21, 13 and 31 to make the
of first two numbers equal to the ratio di
two numbers is
​

Answer 1

Answer:Let number =x be added to each Number

Now

First Number=8+x

Second Number=21+x

Third Number=13+x

Fourth Number=31+x

Ratio of First Two number

=8+x:21+x

Ratio of Last Two number

=13+x:31+x

Both are equal Means,

8+x:21+x=13+x:31+x

Number=5 Must Be added

Step-by-step explanation: