Olympiad Math: (January 8 – January 15, 2014)

Unusual progression

Find the value of a2+ a4 + a6 + . . . + a98

If a1, a2 , a3,… is an arithmetic progression with common difference of 2 and

a1 + a2 + a3 + . . . a98 = 3930

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Correct answer were submitted by:

1. Jeffry Robles. University of the Philippines – Diliman

2. Muthukrishnan .Kle College , Bengaluru

3. Jhay Dela Cruz. Polytechnic University of the Philippines – Taguig

4. Arsh Singh. yourmathguru.com

5. Ng Hong Jie.Jurong Junior College.Singapore

6. Kenny Wong, Jurong Junior College, Singapore

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3 Responses

  1. Jhay Dela Cruz says:

    Answer: 1916
    Jhay Dela Cruz
    PUP-Taguig

  2. Jhay Dela Cruz says:

    2014
    PUP- taguig

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