exam
Maths Puzzle
Numerical Ability
how much wipping cream and 2% milk should be mixed to odtain 35 gallons of milk with 4% butter
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exam Other Question
if i have equ:
k = m + s + x + y + z
how do i solve for s?
s = ?
All you can do is get s by itself on one side of the equal sign. In this case, subtract the other terms.
s = k - m - x - y - z
A man has twenty coins consisting of dimes and quarters. If the dimes were quarters and the quarters were dimes he would have 90 cents more than he has now. How many dimes and quarters does he have.
.10x+.25y=z
.25x+.10y=z+.90
I am stuck.