Which of the following Illusions the truth value of given statements ? 5 is less than 7 or 7 is less than 12.
2 answers:
An OR statement (written ) is true if either one of the statements is true, or both. This is the truth table:
In this case, both statements are true, because 5 is indeed smaller than 7, and 7 is smaller than 12. This means that you're in the first row of the truth table, and so the correct option is the first.
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Answer:
Step-by-step explanation:
let they travel the distance between them alone
d = common distance traveled by both motorcycle and car = 540 miles
= time taken by motorcycle to travel distance between them
= speed of the motorcycle = 48 mph
time taken by motorcycle to travel distance between them is given as
= d/
=540/48
= 11.25 h
= time taken by car to travel distance "d" =11.25 - 2.25 = 9 h
= speed of the motorcycle
speed of motorcycle is given as
= d/
= 540/9
= 60 mph
when the car and motorcycle move towards each other, the relative speed is given as
v = +
v = 60 + 48
v = 108 mph
t = time taken to meet
Time taken to meet is given as
t = d/v
t = 540/108
t = 5 h