Problema Solution
3 1/2 of a number added to 1 1/4 of the same number is 57. what is the number?
Answer provided by our tutors
let 'n' represent the number
3 1/2 is 3.5 as a decimal
1 1/4 is 1.25 as a decimal
57 = 3.5n + 1.25n
57 = 4.75n
n = 57/4.75 = 12
the number is 12