Question

please solve this
It's urgent ​

Answer 1

Step-by-step explanation:

a) first 5 sticks then 5+(5-1)=5+4=9sticks

then 9+4=13 this is the rule

b) first 5 then 4 that is 5+4=9+4=13+4=.....

c) first 6 then 6-1 that's 5 then 6+5=11+5=16+5=....