Q3.

Suppose you are married and you and your partner attend a party with three other married couples. Several handshakes took place. No one shook hands with himself (or herself) or with their partner, and no one shook hands with the same person more than once. After all hand shaking was completed, suppose you asked each person, including your partner, how many hands they had shaken. Each person gave a different answer. How many hands did your spouse shake?

Q4.

Consider the following conditional code, which returns a Boolean values

if ((x > 25) && (y >100))

 return 'false';

else if((x ≤ 25) && (y ≤ 100))

   return 'true';

else if((x > 25) && (y ≤ 100))

      return 'false';

else

   return 'true';

Simplify it by filling in the following blank with a single Boolean expression without changing the behaviour of the conditional code.

if (__________)

    return 'true';

else

    return 'false'; 

Q5.

Which one of the following types of memory is fastest