exam
Maths Puzzle
Numerical Ability
What quantity of 70 per cent acid solution must be mixed with a 20 percent solution to produce 700 mL of a 50 per cent solution?
Read Solution (Total 0)
exam Other Question
explain roots such as 23 to the 3/4 power or give lesson source
solve by grouping
x^5 + 4x^3 + 7x^2 + 28