. A drinks machine offers three selections – Tea, Coffee or Random but the machine has been wired up wrongly so that each button does not give what it claims. If each drink costs Rs 50, what is the minimum amount of money that must be spent to determine with certainty the correct labeling of the buttons?
A. Rs 100 B. Cannot be determined from the given information C. Rs 150 D. 50

• Rs 50 only
  If I press tea button and get coffee then coffee button is giving either tea or random and random is giving tea or coffee. But coffee came from tea button, thus random button gives tea and coffee button gives random.
• 10 years agoHelpfull: Yes(2) No(2)
• **SORRY**
  Its Rs 100. As one more time I have to put money to find out the random button.
• 10 years agoHelpfull: Yes(2) No(2)
• a)100 coz twice we have to put the money
• 10 years agoHelpfull: Yes(0) No(1)
• Tea,coffee,random it does not give what he want if tea button pressed it gives coffee or random if it give cofee then coffee is either tea or random so do rs 50 required
• 9 years agoHelpfull: Yes(0) No(0)