exam
Maths Puzzle
Numerical Ability
some bacteria were in the microscope and doubles its size every six minutes. in 2 hours the slide is fully covered. when was it half covered?
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please help me in this problem: The ratio of 4 less than a number to 26 more than that number is 1 to 3. What is the number?
P(x)=x^4-4x^3-4x^2-4x-5 it aks me to find all rational zeros of the polynomial. but i dont really know what te rational numbers are