Aptitude and Reasoning Questions

Q:

Which of the following numbers is not a prime number?

A) 731 B) 227
C) 347 D) 461
 
Answer & Explanation Answer: A) 731

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Q:

How many spherical balls of radius 1 cm can be made by melting a hemisphere of radius 6 cm?

A) 112 B) 108
C) 116 D) 104
 
Answer & Explanation Answer: B) 108

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Filed Under: Volume and Surface Area
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Q:

A study published in PLOS Medicine found that obesity was the cause of 1 in 10 deaths in the United States. Also, obesity was the third-leading cause of death in men and women, after high blood pressure and smoking. Hence, many doctors believe that it’s high time obesity be placed in the category of serious diseases as it not only decreases life expectancy but also impairs the normal functioning of the body.
Which of the following statements, if true, undermines the given argument?

A) Extreme obesity can shorten a person's life span by 10 years. B) Obesity is the result of eating of too much and of a sedentary lifestyle and cannot be defined as a disease per se.
C) Obesity can be a genetic disorder such as sickle-cell anemia and Tay- Sachs, which are classified as diseases. D) The Food and Drug Administration, the American Heart Association, the American College of Cardiology, and the Obesity Society, the National Heart, Lung, and Blood Institute, and the American College of Gastroenterology have i
 
Answer & Explanation Answer: B) Obesity is the result of eating of too much and of a sedentary lifestyle and cannot be defined as a disease per se.

Explanation:

The given argument states that obesity should be categorized as a serious disease as it is known to decrease life expectancy and to harm the normal functioning of the body just like any other life-threatening disease. Option B undermines the argument by pointing out that obesity is mostly a lifestyle problem and not a disease. Compared to 40 years ago, people today spend more time commuting, sitting in front of a computer, watching television, playing video games, and generally exercising less, and end up burning fewer calories. Hence, option 2 is the correct answer.

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Q:

Find the odd word/letters/number pair from the given alternatives.

A) BDFH B) ACEG
C) IKMO D) RTVW
 
Answer & Explanation Answer: D) RTVW

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Q:

Find the odd word/letters/number pair from the given alternatives.

A) (85, 136) B) (34, 85)
C) (102, 153) D) (63, 162)
 
Answer & Explanation Answer: D) (63, 162)

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Q:

What will come in the place of the question mark (?) in the following number series?305, 338, 404, 503, 635 , (?)

A) 820 B) 880
C) 800 D) 890
 
Answer & Explanation Answer: C) 800

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Q:

If selling price and cost price of an article are Rs. 684.25 and Rs. 595 respectively, then what is the profit percentage?

 

A) 15 B) 10
C) 12.5 D) 20
 
Answer & Explanation Answer: A) 15

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Filed Under: Profit and Loss
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Q:

If 12x2 - ax + 7 = ax2 + 9x + 3 has only one (repeated) solution, then the positive integral solution of a is

 

A) 2 B) 4
C) 3 D) 5
 
Answer & Explanation Answer: C) 3

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Filed Under: Simplification
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