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Directions: Solve the following question and mark the most appropriate option.
x is a natural number between 1 and 20, both inclusive, such that
1. If x is less than 10, then it is even.
2. If x is not divisible by 3, then it is prime.
3. If x is not a factor of 60, then it is a factor of 102.
4. If x, when divided by 7, leaves a remainder greater than 4, then it is greater than 14.
5. If one less than x is a perfect square, then the reciprocal of x is less than 4/7.
6. If one more than x is a perfect square, then x is not divisible by 5.
Q. What is the value of x?
  • a)
    2
  • b)
    3
  • c)
    5
  • d)
    8
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Directions: Solve the following question and mark the most appropriat...
From the first condition, if x is less than 10, then x = 2, 4, 6 or 8, otherwise it is 10, 11, 12, …, 20.
From the second condition, if x is divisible by 3, then x = 6, 9, 12, 15 or 18, otherwise it is 2, 5, 7, 11, 13, 17 or 19.
From the third condition, if x is a factor of 60, then x = 1, 2, 3, 4, 5, 6, 10, 12, 15 or 20, otherwise it is 17.
From the fourth condition, if x when divided by 7 leaves a remainder greater than 4, then x = 19 or 20, otherwise it is 1,2,3,4,7,8,9,10,11,14,15,16,17,18
From the fifth condition, if x – 1 is a perfect square, then x = 2, 5, 10 or 17, otherwise it is 1,3,4,6,7,8,9,11,12,13,14,15,16,18,19,20.
From the sixth condition, if x + 1 is a perfect square, then x = 3 or 8, otherwise it is 1, 2, 4, 5, 6, 7, 9,10,11,12,13,14,16, …, 20.
The only value that satisfies all of the above conditions is x = 2.
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Human beings are naturally visual creatures. Our eyes, capable of counting single photons, have been optimized over evolutionary time to the very limits of the laws of physics. And so, perhaps it's no surprise that we live in an era in which the visible competes for our attention ever more forcefully. Our eyes and minds are bombarded by information, much of which we don't have time to process, let alone fully understand. Insidiously, a certain proportion is even designed to distract us or prevent us from gaining insight and revealing truth. On social media, on TV - our eyes follow the brightly lit people of our era to the point of our own exhaustion. Being seen is a measure of import, of relevance. Being visible is a need, and simultaneously a cause of anxiety or fear. Some of us may even begin to wonder: if we are not visible, do we fully exist? Even as we feel overloaded and overwhelmed with the visible, many of us can't seem to take back control and look away. Look away - at what?Yet, an invisible world surrounds and inhabits us. From the quantum level to the cosmic expanse, the majority of the physical universe is not visible to us most of the time.Of the true three-dimensional depth and volume of space, we detect merely a hint when we look up at the seemingly two-dimensional dome above us. Of the miniscule multitudes, the microbial world living around and within us, we sense only the tip of the proverbial iceberg. Most of us give little thought to the mysterious and non-intuitive quantum underpinnings of the world, given that our daily experiences are predominantly at the macroscopic scale.But, by training our eyes and minds to seek out the invisible, we can change our understanding of reality. Encounters with the invisible show us just how unnatural it actually is to take the measure of the physical world, of others, and ourselves, just in terms of what can be plainly seen.Q. Which of the following is a message that could be seen coming from the author?

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Directions: Solve the following question and mark the most appropriate option.x is a natural number between 1 and 20, both inclusive, such that1. If x is less than 10, then it is even.2. If x is not divisible by 3, then it is prime.3. If x is not a factor of 60, then it is a factor of 102.4. If x, when divided by 7, leaves a remainder greater than 4, then it is greater than 14.5. If one less than x is a perfect square, then the reciprocal of x is less than 4/7.6. If one more than x is a perfect square, then x is not divisible by 5.Q. What is the value of x?a)2b)3c)5d)8Correct answer is option 'A'. Can you explain this answer?
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