Question

(i) Which term of the A.P.3,8,13,... is 248?

Answer 1

Answer:

let nth term is 248

Tn=a+(n-1) d

248=3+(n-1) 5

n-1=245/5=49

n=50

Answer 2

An=a+(n-1)d

248=3+(n-1)5

245/5=n-1

49=n-1

n=50

50th term is 148

Hope it helps

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