Which term of the A.P: 3,8,13,........ is 33?
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Which term of the A.P: 3,8,13,........ is 33?
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here a=3 , d= 8-3=5 an=33
an= a+(n-1)d
33= 3+ (n-1)5
33=3+5n-5
33= -2+5n, 33+2=5n, 35=5n, 35/5=n, n=7