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The first term of AP is 55 and common difference is 3 and last term ie 80 .find no. of term?
Most Upvoted Answer
The first term of AP is 55 and common difference is 3 and last term ie...
A=55,
d=3,
an=80,
an=a+(n-1)d,
80=55+(n-1)3,
25/3=(n-1),
n=25/3+1=28/3=9.333..
Community Answer
The first term of AP is 55 and common difference is 3 and last term ie...
Yaa i think aryan is right a+(n-1)d=80 55+(n-1)3=80 55+3n-3=80 52+3n=80 3n=80-52 3n=28 n=9.333... but if it is 79 then the answer would be 9
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The first term of AP is 55 and common difference is 3 and last term ie 80 .find no. of term?
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