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Question

Class has 70 students. Boys = girls. Suman is \(19^{th}\) from top, 10 girls ahead. How many boys are behind her?

This question was previously asked in
SSC Stenographer 2025 Question Paper (06-Aug-2025) Shift 2
The correct answer is
27

Class Composition Analysis

The problem states there are 70 students in the class. It also mentions that the number of boys equals the number of girls.

  • Total students = 70
  • Number of boys = Number of girls
  • Therefore, Number of boys = \(\frac{70}{2} = 35\)
  • And, Number of girls = \(\frac{70}{2} = 35\)

Suman's Position and Ahead Students

Suman's position is given as 19th from the top. This means there are 18 students ahead of Suman in the class.

The problem also specifies that there are 10 girls ahead of Suman.

  • Suman's rank from top = 19
  • Students ahead of Suman = Rank - 1 = \(19 - 1 = 18\)
  • Number of girls ahead of Suman = 10

We can now determine the number of boys who are ahead of Suman:

  • Boys ahead of Suman = Total students ahead - Girls ahead of Suman
  • Boys ahead of Suman = \(18 - 10 = 8\)

Calculating Boys Behind Suman

We know the total number of boys in the class and the number of boys ahead of Suman. We can now calculate the number of boys behind Suman.

  • Total number of boys = 35
  • Number of boys ahead of Suman = 8
  • Number of boys behind Suman = Total boys - Boys ahead of Suman
  • Number of boys behind Suman = \(35 - 8 = 27\)

So, there are 27 boys behind Suman.

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Important Questions from Ordering and Ranking

  1. A medical representative plans to visit each of six hospitals — A, B, C, D, E and F — exactly once during the course of one day. He is setting up his schedule for the day according to the following conditions:

    i. He must visit A before B and E.

    ii. He must visit B before D.

    iii. The third hospital he visits must be C.

    Which of the following could be the possible order in which the medical representative visits the six hospitals?
  2. Sonam is older than Renu. Komal is younger than Renu. Priya is older than Sonam. Who is the eldest of them?

  3. Five men P, Q, R, S and T are reading a newspaper. The one who reads it first, gives it to T. The one who reads it last, had taken it from R. Q is not the first or last one to read it. There were two readers between P and R. Who is the third one to have read the newspaper?

  4. P, Q, R, S, T and U are standing in a queue. Q is just ahead of P. S is just behind T. U is NOT near R, who is separated from Q by two persons. Who is standing at the front of the queue?

  5. Five students took part in a cycling competition. Robert finished before Monish but behind Gunjan. Anil finished before Sunil but behind Monish.

    Who won the competition?

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