If sum of two numbers is #90# and one number is four-fifth of the other, fund the numbers?

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Answer 1 · 2017-07-27T13:16:44

#:.color(magenta)(x=50# and #color(magenta)(40)#

Let the other number be # x#

As one number is #4/5# times another number, it is #(4x)/5# and as sum of the two numbers is #90#

#:.x+(4x)/5=90#

#:.(9x)/5=90#

#:.x=90xx5/9=50#

#:.color(magenta)(x=50)# and #4/5xx50=color(magenta)(40)#

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#check:-#

#40+50=90#