Math, asked by goelanshruta, 8 months ago

Sum of first 10 terms of an ap is 300 .also sum of next 10 terms is 700 find ap ?

Answers

Answered by arbazkhan47
0

Answer:

sorry I don't understand your sum

Answered by Aastha242348
0

Answer:12,16,20,24,18........

Step-by-step explanation: As S10=300

S20-S10=700

S20-300=700

S20=1000

{as Sn=n/2[2a+(n-1)d]}

20/2{2a+[20-1]d}=1000

2a+19d=100-----------------------equation1

S10=300

10/2{2a+9d}=300

2a+9d=60-------------------------equation2

subtract both the equation we got,

d=4 and a=12

AP 12,16,20,24,28

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