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  • Question
  • In a row of boys, if A who is 10th from the left and B who is 9th from the right interchange their positions, A becomes 15th from left. How many boys are there in the row?


  • Options
  • A. 23
  • B. 27
  • C. 28
  • D. 31

  • Correct Answer
  • 23 

    Explanation

    According to question B is 9th from the right end and A is 15th from the left end.
    Therefore, Total number of boys in the row = B's position in row + A's position in row - 1
    Total number of boys in the row = 9 + 15 ? 1 = 23


  • Seating Arrangement problems


    Search Results


    • 1. 
      A, P, R, X, S and Z are sitting in a row. S and Z are in the centre, and A and P are at the ends. R is sitting on the left of A. Then who is on the right of P?

    • Options
    • A. A
    • B. X
    • C. S
    • D. Z
    • Discuss
    • 2. 
      Of the 5 members of a panel sitting in a row, A is to the left of B, but on the right of C, D is on the right of B but is on the left of E. Find the member who is sitting in the middle.

    • Options
    • A. B
    • B. D
    • C. A
    • D. C
    • Discuss
    • 3. 
      5 men A, B, C, D and E read a newspaper. The one who reads first gives it to C, the one who reads last had taken it from A. E was not the first or last to read. There were two readers between B and A. Find the person who read the newspaper last.

    • Options
    • A. E
    • B. B
    • C. D
    • D. A
    • Discuss
    • 4. 
      A, B, C, D, E and F are sitting in a row. 'E' and 'F' are in the center and 'A' and 'B' are at the ends. 'C' is sitting on the left of 'A'. Then who is sitting on the right of 'B'?

    • Options
    • A. A
    • B. D
    • C. E
    • D. F
    • Discuss
    • 5. 
      There are five different houses, A to E, in a row. A is to the right of B and E is to the left of C and right of A, B is to the right of D. Which of the houses is in the middle?

    • Options
    • A. A
    • B. B
    • C. C
    • D. D
    • Discuss
    • 6. 
      A, B, C, D and E are sitting on a bench. A is sitting next to B, C is sitting next to D, D is not sitting with E who is on the left end of the bench. C is on the second position from the right. A is on the right of B and E. A and C are sitting together. In which position is A sitting?

    • Options
    • A. Between B and D
    • B. Between B and C
    • C. Between E and D
    • D. Between C and E
    • Discuss
    • 7. 
      Five boys are sitting in a row. a is on the right of B, E is on the left of B, but to the right of C. If A is on the left of D, who is sitting in the middle?

    • Options
    • A. E
    • B. B
    • C. A
    • D. C
    • Discuss
    • 8. 
      While the group photo of a family was taken, the father was found to be sitting to the left of the son and right to the grandfather. Mother was sitting to the right of her daughter but left to grandfather. Who is occupying the central place?

    • Options
    • A. Son
    • B. Grandfather
    • C. Father
    • D. Mother
    • Discuss
    • 9. 
      Six persons A, B, C, D, E, F sit in 2 rows, 3 in each. If E is not at any end, D is second to left of F, C is neighbor of E and is sitting diagonally opposite to D and B is neighbor of F, who will be opposite to B?

    • Options
    • A. A
    • B. E
    • C. C
    • D. D
    • Discuss
    • 10. 
      There are three girls G1,G 2 ,G3 and three boys B1, B2, B3 in a school talk. The restriction is no two girls should speak together. If in an arrangement B1 speaks first what is the position of B2 and G2?


    • Options
    • A. 2nd and 3rd
    • B. 3rd and 4th
    • C. 4th and 5th
    • D. 5th and 6th
    • Discuss


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