exam
Maths Puzzle
Numerical Ability
How many pints of a 9% cleaning solution must be mixed with 10 pints of a 13%
cleaning solution to give a 11% solution?
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exam Other Question
Please help me find the other extreme: ratical 12 is the gepmetric mean between a and b. Find b if a = 3.
m=2(x+n)
so far i did this:
m=2(x+n)
m=2x+2n
-2n -2n
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m-2n=2x
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2 2
m???= x
can you divide 2n by 2?