contestada

The junior senator can work his way through
a bureaucratic labyrinth in 50 minutes. The
senior senator can work his way through a
bureaucratic labyrinth in 30 minutes.
Working together, how many minutes would
it take them to work their way through 12
bureaucratic labyrinths?

Respuesta :

AL2006

-- Working together, they work through (1/50 + 1/30) of a labyrinth in 1 minute.

-- That's 1/18.75 of a labyrinth each minute.

-- So it takes them 18.75 minutes to work through 1 labyrinth together.

-- To work their way through 12 labyrinths, working together, would take them

(12 x 18.75 minutes) = 225 minutes.    

Otras preguntas