Question

in the number n-2;4n-1 and 5n+2 are in AP find the value of n.

Answer 1

a,b,c are in A.P
so 2b=a+c

5n+2+n-2=8n-2
6n=8n-2
2=2n
n=1

Answer 2

so 2b=a+c
2(4n-1)=n-2+5n+2
8n-2=6n
2n=2
n=1
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