Question

please someone help me ....
please solve step by step .​

Answer 1

HOPE IT'S WILL HELP YOU.

Answer 2

d=10,

tn=a+(n-1)d

t6=a+(6-1)10

=a+5×10

=a+50--------------(1)

t2=a+(2-1)10

=a+1×10

=a+10----------------(2)

from (1)&(2)

t6-t2

a+50-a+10

a ana -a will be cancelled

answer is 60