Question

Find the common difference of



a.P whose 1st turm is 5 and 11th turm 25

Answer 1

Step-by-step explanation:

given: a1= 5(first term)

a11= a1+(n-1)d

=a1 +10d. (n=11)

25=5+10d. (a1=5 as given)

10d=20

hence, d=2

hope it helps you :)