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Maths Puzzle
Numerical Ability
which are the properties of real numbers?
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A pharmacist mixed some 10%-saline solution with some 15%-saline solution to obtain 100 mL of a 12%-saline solution. How much of the 10%-saline solution did the pharmacist use in the mixture?
Can u help me with these problems please.....(5+3)divided by 2+2
3x6+9divided by 3 to the third power;125divide by [5(2+3)]
PS thank u so oh and i had to write some of it out b