ftbluedevil
22.01.2022 •
Mathematics
The logician Raymond Smullyan describes an island containing two types of people: knights who always tell the truth and knaves who always lie. You are visiting the island and have the following encounters with natives.
a. Two natives A and B address you as follows:
A says: Both of us are knights.
B says: A is a knave.
What are A and B?
b. Another two natives C and D approach you but only C speaks:
C says: Both of us are knaves.
What are C and D?
c. You then encounter natives E and F.
E says: F is a knave.
F says: E is a knave.
How many knights and knaves are there?
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Ответ:
0 visits
Step-by-step explanation:
According to the scenario, calculation of the given data are as follows,
Rewards for signing up = 80 points
Reward per visit = 2.5 points
Total points needed = 105
Let, number of visits = x
So, we can calculate number of visits by using following formula,
80 + (2.5 × X) = 105
2.5X = 105 - 80
2.5X = 25
X = 25 ÷ 2.5
X = 10 visits.
Hence, Olivia needs to make 10 visits in order to earn a free movie ticket
Step-by-step explanation: