Given that S=n/2(2a+(n-1)d). If a=4,d=3 and n=20 find the value of S

Question

asked Oct 16, 2022 211k views

2 Answers

Nulll · Answer 1 · 2022-10-23T05:49:25+0000

Answer:

s=650

Explanation:

Sum of 'n' terms formula is given by:-

s=n/2(2a+(n-1)d)

s=20/2[2x4+(20-1)3]

s=20/2(2x4+19x3)

s=20/2(8+57)

s=20/2x65

s=10x65

s=650