Question

the first term of an AS is 10 and it sum of first five term is 250 what is the sequence and what is the common difference ​

Answer 1

Answer:

20

Step-by-step explanation:

a=10,S5=250,n=5,

using formula of Sn=n/2(2a+(n-1)d)

250=5/2(2*10+4d)

100=20+4d

hence d=20