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If the sum of first term 14 term of an Ap is 1050 and its first term is 10 find the 20th term

    • Posted by Kuldeep Aggerwal 5 years, 8 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Vinayak Jaiswal 5 years, 8 months ago

    A14=1050 =a+13d=1050---b a=10 from eqn b ,we get 10+13d=1050 13d=1040 d=80 a+19d=? 10+19*80=10+1170=1180

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