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  • Question
  • On sport?s day, if 12 children were made to stand in each column, 98 columns could be formed. After a certain music being played the plan was that the children have to stand in concentric circles such that the innermost circle will have one student, the next circle will have two students, the third circle will have 3 students and so on. How many circles will be formed in this manner ?


  • Options
  • A. 44
  • B. 46
  • C. 48
  • D. 49

  • Correct Answer
  • 48 

    Explanation

    No. of students will be 98 x 12 = 1176
    let us consider n circles then 1 + 2 + 3 + ....+ n = 1176
    n(n+1)/2 = 1176
    n = 48 circles.

  • Tags: AIEEE, Bank Exams, CAT, GATE, Bank Clerk, Bank PO

    More questions

    • 1. 
      NA

    • Options
    • A. 49
    • B. 140
    • C. 112
    • D. 97
    • Discuss
    • 2. 
      Either Sam is ill, or he is drunk.
      A. Sam is ill.
      B. Sam is not ill.
      C. Sam is drunk.
      D. Sam is not drunk.

    • Options
    • A. AB
    • B. DA
    • C. AC
    • D. CD
    • Discuss
    • 3. 
      E M I H T R
      1 2 3 4 5 6

    • Options
    • A. 1, 2, 3, 4, 5, 6
    • B. 4, 1, 6, 2, 3, 5,
    • C. 5, 1, 6, 4, 3, 2
    • D. 6, 1, 2, 3, 5, 4
    • Discuss
    • 4. 
      R T A N U E
      1 2 3 4 5 6

    • Options
    • A. 1, 3, 2, 6, 4, 5
    • B. 3, 2, 4, 6, 1, 5
    • C. 4, 3, 2, 5, 1, 6
    • D. 4, 6, 5, 2, 3, 1
    • Discuss
    • 5. 
      Find the odd word.

    • Options
    • A. Silver
    • B. Iron
    • C. Gold
    • D. Hydrogen
    • Discuss
    • 6. In a group of cows and hens, the number of legs are 14 more than twice the number of heads. The number of cows is

    • Options
    • A. 5
    • B. 7
    • C. 10
    • D. 12
    • Discuss
    • 7. 
      Which of the following combinations of person, college and profession is definitely correct?

    • Options
    • A. E ? X ? Fashion Designing
    • B. F ? X ? Engineering
    • C. A ? Y ? Businessman
    • D. D ? Z ? Teaching
    • Discuss
    • 8. 
      a_ba_c_aad_aa_ea

    • Options
    • A. babbb
    • B. babbd
    • C. babbc
    • D. bacde
    • Discuss
    • 9. 
      Statement
      Everybody loves reading adventure stories.
      Assumptions
      I. The adventure stories are the only reading materials.
      II. Nobody loves reading any other material.

    • Options
    • A. if only Assumption I is implicit
    • B. if only Assumption II is implicit
    • C. it either I or II is implicit `
    • D. it neither I not II is implicit
    • Discuss
    • 10. 
      Russia : Moscow

    • Options
    • A. India : Mumbai
    • B. Norway : Oslo
    • C. China : Shanghai
    • D. Pakistan : Faislabad
    • Discuss


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