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Q:

The command center of fluid intake is located in the

A) Hypothalamus	B) Adrenal glands
C) Kidneys	D) None of the above

Answer & Explanation Answer: A) Hypothalamus

Explanation:

The command center of fluid intake is located in the Hypothalamus.

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Filed Under: Biology
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Q:

India is the largest producer and consumer of

A) Tea	B) Pulses
C) Sugar	D) All of the above

Answer & Explanation Answer: B) Pulses

Explanation:

We know that, largest producer of tea is China and largest producer of sugar is Brazil. So we can violate options A, C and D.

Hence, India is the largest producer and consumer of Pulses.

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Filed Under: General Awareness
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Q:

The sum of the present ages of a father and his son is 70 years. Five years ago, father's age was 5 times the age of the son, so now the son's age will be?

A) 12	B) 14
C) 15	D) 19

Answer & Explanation Answer: C) 15

Explanation:

Father Son

5years ago the age of the father & son 5X X

present the age of the father & son 5X+5 X+5

(present age of father) + (present age of son) = 70

(5x+5) + (x+5) = 70

Then you will get X = 10

Present age of the son (x+5) = 15

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Filed Under: Problems on Ages
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Q:

Name something switzerland is famous for

A) Apples	B) Alps
C) Aeroplanes	D) Water falls

Answer & Explanation Answer: B) Alps

Explanation:

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Filed Under: World Geography
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Q:

Salts and sugars work to preserve foods by creating a

A) Hypertonic environment	B) Lower pH
C) Depletion of nutrients	D) Lower osmotic pressure

Answer & Explanation Answer: A) Hypertonic environment

Explanation:

Salts and sugars work to preserve foods by creating a Hypertonic environment.

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Filed Under: Biology
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Q:

A group of five persons is formed from five boys and four girls. Find the probability that there are at least two girls in the group?

A) 110/129	B) 5/6
C) 121/126	D) 3/7

Answer & Explanation Answer: A) 110/129

Explanation:

Total number of possible ways =

$9 C_{5} = \frac{9 x 8 x 7 x 6 x 5}{5 x 4 x 3 x 2 x 1} = 126$

Number of favorable cases =

$4 C_{2} x 5 C_{3} + 4 C_{3} x 5 C_{2} + 4 C_{4} x 5 C_{1} \frac{4 x 3}{2 x 1} x \frac{5 x 4 x 3}{3 x 2 x 1} + \frac{4 x 3 x 2}{3 x 2 x 1} x \frac{5 x 4}{2 x 1} + 1 x 5 = 6 x 10 + 4 x 10 + 5 = 60 + 40 + 5 = 105$

Therefore, required probability = 105/126 = 5/6

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Filed Under: Probability
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Q:

Meghana alone would take 32 hours more to complete a job than both Meghana and Ganesh together. If Ganesh worked alone, he took 12 1/2 hours more to complete it than both Meghana and Ganesh worked together. What time would they take if both Meghana and Ganesh worked together?

A) 20 hrs	B) 18 hrs
C) 22 hrs	D) 20.5 hrs

Answer & Explanation Answer: A) 20 hrs

Explanation:

Time taken by both Meghana and Ganesh to work together is given by =

$\sqrt{t_{1} x t_{2}}$

Where

$t_{1} = 32 h r s t_{2} = 12 \frac{1}{2} h r s = \frac{25}{2} h r s$

Therefore, time took by both to work together =

$\sqrt{32 x \frac{25}{2}} = \sqrt{16 x 25} = 4 x 5 = 20 h r s$

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Filed Under: Time and Work
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Q:

Alcohol has many sensations and effects like

A) loss of concentration	B) dizziness
C) nausea	D) All of the above

Answer & Explanation Answer: D) All of the above

Explanation:

Alcohol has many sensations and effects like dizziness, nausea and loss of concentration.

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Filed Under: General Science
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