determine the 10th term from end of the Ap :4,9,13______,254
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a10= a+(n-1)d
here,a=4,d=5,n=10
a10=4+(10-1)5
a10=4+45
a10=49
here,a=4,d=5,n=10
a10=4+(10-1)5
a10=4+45
a10=49
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