Question

Find the common difference if a=5,n=15,an=33

Answer 1

Answer:

a=5(first term), n=15, an=33

⇒an=a+(n-1)d,[where we know that a=5,an=33 and n=15]

Putting the following data in the above equation we get,

a15=5+14.d

33=5+14.d

28=14.d

∴d=2

Hope it helps you.