Que: If x and y are different prime numbers greater than 20 but less than 30, what is the value of x + y?
A. 23
B. 29
C. 50
D. 52
E. 56
Que: If x and y are different prime numbers greater than 20 but less than 30, what is the value of x + y?
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- Max@Math Revolution
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- Max@Math Revolution
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Solution: Prime number: An integer that has two positive factors = only 1 and itself => ex) 2, 3, 5, 7…
We have to find the value of x + y
=>If x and y are different prime numbers greater than 20 but less than 30
=> Prime numbers between 20 and 30: 23 and 29 => ∴ x + y = 23 + 29 = 52 .
Therefore, D is the correct answer.
Answer D
We have to find the value of x + y
=>If x and y are different prime numbers greater than 20 but less than 30
=> Prime numbers between 20 and 30: 23 and 29 => ∴ x + y = 23 + 29 = 52 .
Therefore, D is the correct answer.
Answer D
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