OTF Thinking Thread
yes. It should bring you to two whole number solutions.
only one is viable in context though
this is a probability question at its core. The total counters is x so the chance of getting blue on the first draw is 7/x . This might be enough of a hint.
Have you heard of probabiliy trees? They will help visualise the problem
yup. You should be able to get it using algebra now.
Some people think that all testing on animals for anything is morally unjustifiable. What do you think?