Teaching Year Riddle

1,047.9K Views
Answered

Three teachers were discussing how long they had been teaching.

  • Adrian and Betty had been teaching for a total of 36 years.
  • Charles and Betty had been teaching for a total of 22 years.
  • Charles and Adrian had been teaching for a total of 28 years.

How long had each been teaching?

Share
Add Comment

  • 1 Answer(s)
    Best answer

    Adrian and Betty had been teaching for a total of 36 years.    => A + B = 36  (1)
    Charles and Betty had been teaching for a total of 22 years.  => B + C = 22  (2)
    Charles and Adrian had been teaching for a total of 28 years => A + C = 28  (3)
    ……
    Solving the equations, A = 21, B = 15, C = 7

    => Adrian has been teaching for 21 Years; Betty for 15 Years and Charles, 7 years.

    Viji_Pinarayi Expert Answered on 18th March 2018.
    Add Comment
  • Your Answer

    By posting your answer, you agree to the privacy policy and terms of service.
  • More puzzles to try-