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Question

Six hundred minus three fourths of a number is three times the number.

Find one fourth of the number.

Answer 1

Let x = the unknown number.  Six hundred minus three fourths of a number (600 - (3/4)x) is (=) three times the number (3x)

 

      600 - 3x/4 = 3x

      600 = 15x/4

      600*(4/15) = x

 

      160 = x

 

Find one fourth of the number

 

      (1/4)x = (1/4)160 = 40