# The 7th term and 17th term of an A.P. are 32 and 82 respectively then find first term (a) , common difference (d) and 27th term such that tn = 182

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a+6d=32

a+16d=82

from equation 1 and 2

-10d=-50

d=5

putting d=5 in equation 1

a+6(5)=32

a=2

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