Math, asked by pophalesarvadnya52, 1 year ago

solve this problem question no.6 please send me

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Answered by ajayshotia
0
S=55/2[2a+(55-1)d]
3300×2/55=2a+55d
2(a+27d)=120
a+27d=120/2
28 th term=a+(28-1)d=a+27d=60
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