Question

What number must be added to each of the numbers 5, 11, 15 & 31, so that they're in proportion.

Answer 1

Answer:

The number to be added to each of the numbers 5, 11, 15 & 31, so that they're in proportion is 1

Step-by-step explanation:

Let The number be x

(11+x)/ (5+x) = (31+x)/ (15+x)

=>10x=10

x=1

∴ Numbers are 5+1=6, 11+1=12

15+1=16, 31+1=32.

Answer 2

Answer:

1

Step-by-step explanation:

5+1=6

11+1=12

15+1=16

31+1=32

6:12::16:32::1:2