THE SUM OF 4 TH AND 8 TH TERM OF AN AP IS 24 AND THE SUM OF THE 6 TH AND 20TH TERM OF AN AP IS 44...FIND a and d....
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Hi Raj ,
a+(n-1)d = represents nth term of an AP
so
a+3d+a+7d = 24
2a+10d = 24
a+5d = 12
a+5d+a+19d = 44
2a+24d = 44
a+12d = 22
solving above two equations, we get
a= 34/7
d = 10/7
Hope it helped
Let me know if any other doubts.
Cheers !!!
a+(n-1)d = represents nth term of an AP
so
a+3d+a+7d = 24
2a+10d = 24
a+5d = 12
a+5d+a+19d = 44
2a+24d = 44
a+12d = 22
solving above two equations, we get
a= 34/7
d = 10/7
Hope it helped
Let me know if any other doubts.
Cheers !!!
jish4you:
pls rate my solution if you find it correct
no
not corrrect5
it is correct only bro , please go through my solution once. I have cross verified also.
no see u hv found by term but in the question it's said " find the sum of "
Sum of 4th and 8th term means term4 + term8. Now as you say, then it should have been sum till 4th term and 8th term ! hope u got it
sum till : sum till term4 + sum till term8
sum of : term4 + term8
ok bro
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