Maths Olympiad Exam Numerical Ability

if the 15th term of an A.P is 121 and the 25th term is 201 find the 35th term of the AP

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a+14d=121
a+24d=201
so a=9 and d=8.
so 35th term is=a+34d=9+34*8=281
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Maths Olympiad Other Question

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