A drinks machine offers three selections - Tea, Coffee or
Random (Either tea or Coffee) but the machine has been wired
up wrongly so that each button does not give what it claims.
If each drink costs 50p, how much minimum money do you have
to put into the machine to work out which button gives which
selection?
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Answer Posted / ddd
50ps-button1 - coffee (assume)
50ps-button1 - confirm it coffee or random (assume coffee)
50ps-button2 - Tea (assume)
50ps-button2 - confirm it tea or random (assume tea)
Rs 2/- required to confirm which button gives what
| Is This Answer Correct ? | 3 Yes | 15 No |
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