Question

in an ap the first term is 2 the last term is 29 and the sum of the terms is 155. Find the common difference of the A.P

Answer 1

By solving with the help of the equation
Sn=n/2(a+l)

We get n=10
Puting the value in
Tn=a+(n-1)d


By solving this equation

We get d=3

HOPE THIS WILL HELP U

Answer 2

Answer:

Step-by-step explanation:

a=2

An=29

Sn=155

By formula

Sn=n/2(a+an)

155=n/2(2+29)

155×2=n×31

310=31n

n=310/31

n=10