Question

Qa.on the first day of her training, a girl dives to adepth of 3m
From second day onwards Shedives 2m deeper than the
previous day. How far did she dive on the sixth day?​

Answer 1

heya ...

so according to the question
we get an Ap
AP= 3,5,7,9...
where,. A¹=3
D= 2
so now
we know that 
An=a+(n-1)D
so A6= 3+(5)2
A6=3+10
A6=13

hope this helps u