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OpenStudy (mathmath333):
the series is 1,5,9,13........ which of the following will be the term of this arithmetic progression a 4551 b 10091 c 7881 d 13531 e 13537<---
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OpenStudy (cj49):
e is the ans
OpenStudy (mathmath333):
yes 100%
OpenStudy (mathmath333):
what about \[c\] ?
OpenStudy (cj49):
3384*4+1=13537
OpenStudy (cj49):
even C is 1970*4+1
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OpenStudy (mathmath333):
so its c or e
ganeshie8 (ganeshie8):
c and e
OpenStudy (cj49):
c wud be 1971 term and e wud be 3385th term
OpenStudy (mathmath333):
how did u calculate 1971 and 3385
OpenStudy (cj49):
a+(n-1)d a=1 n =no of terms d=difference
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OpenStudy (cj49):
t(1971)= 1+(1971-1)4 t(1971)=1+1970*4=7880+1=7881
OpenStudy (mathmath333):
tnks
OpenStudy (cj49):
np..
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