Question

Which term of the ap 3 8 13 18 will be 55 is more than its 20 term?

Answer 1

Answer:31st term

Step-by-step explanation: Let n be the term for which is 55 more than the 20th term of an AP ...From Above

a=3 d=5 #a(nth) = 55+a(20th) a(20th) = a+19d = 98

Putting value in #a(nth) we get

a(nth)= 55+98=153

#General Formula of a term of AP, a(nth) = a+(n-1)d

Putting values in this formula,

153= 3+(n-1)5

n-1= 30

n=31