exam
Maths Puzzle
Numerical Ability
a die and a coin are tossed. what is the probability fo tossing a 5 and a head?
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exam Other Question
A certain radioactive element decays exponentially with a half-life of 5 hours. Find the time that has elapsed if a 50mg sample has decayed to 17 mg.
could you please help me with this:
6/x+3 - 3/x+6 = 4/x+3
Could you show me the steps as well as your answer please?
Thank you