Question

which number must be added to each of the numbers 7&13 so that the resultant number will be in the ratio 2:3
:​

Answer 1

Answer:

5

Step-by-step explanation:

let the number to be added = k

then the numbers 7+k, 13+ k

then the ratio of the numbers= 2:3

7+k:13+k= 2:3

(7+k)×3= (13+k) ×2

(since product of extremes= product of means)

21+3k = 26+2k

3k-2k= 26-21

k= 5

so number must be added to each of the numbers 7&13 so that the resultant number will be in the ratio 2:3= 5