In a certain AP, 5 times the 5th term is equal to 8 times the 8th term, then its

In a certain AP, 5 times the 5th term is equal to 8 times the 8th term, then its 13th term is equal to

2) The sum of 5 numbers in AP is 30 and sum of their squares is 220. Which of the following is the third term ?

3) Second term of sequence with general term n2 - 4/2 is

4) 2,4,6,8,10,12,… is

5) A number 15 is divided into three parts which are in AP and sum of their squares is 83. The smallest part is