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श्रीKHATU SHYAM TRAVELS ( VISHAL PACHAURI )
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श्रीKHATU SHYAM TRAVELS ( VISHAL PACHAURI )
Asked: April 26, 20202020-04-26T03:07:09+00:00 2020-04-26T03:07:09+00:00In: Class 10

Math class10

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Math class10

Ek pratiyogi Pariksha mein  Ek prashn ka Sahi Uttar dene per 1 ank Milta Hai jabki Ek prashn ka galat Uttar dene par 1/2 ank Kat liya jata hai Jayanti Ne 120 prashnon ke Uttar dijiye tatha use 90 ank prapt Hue batao Jayanti Ne kitne prashnon ke Sahi Uttar diye the

10th mathscbse class 10class 10 mathsmaths 10
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    1. Mohit sharma
      2020-05-02T12:46:06+00:00Added an answer on May 2, 2020 at 12:46 pm

      total question= 12
      Right question= 100
      wrong question = 20
      let the number of right question is x than wrong will 120-x . so no of mark for right question will 1x and marks for other will (120-x)1/2
      so equation will 1x-(120-x)1/2 = 90 . then answer will 100 and 20

      I have come now in class 8 . so easy to solve

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    2. Mohit sharma
      2020-05-02T12:51:36+00:00Added an answer on May 2, 2020 at 12:51 pm

      daughter present age = 14
      Salim s present age = 34

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