# maths

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the frst term of AP is 4 and the last term is 79.given that the sum of the AP is 996, find the number of terms and the commmon difference.

• maths -

a=4
Sn = n/2 (8+(n-1)d) = 996
An = 4+(n-1)d = 79

n = 24
d = 75/23

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