Question

if 25,9=17 6,12=9 34,4=19 than 11,13=?​

Answer 1

Answer:

11,13 is 12

Step-by-step explanation:

25,9=17 means

(25+9)/2 =34/2 =17

6,12=9

(6+12)/2=18/2=9

34,4=19

(34+4)/2=38/2=19

similarly

11,13 is

(11+13)/2

=24/2=12

hence 11,13 =12