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Q:

A bag contains 3 red balls, 5 yellow balls and 7 pink balls. If one ball is drawn at random from the bag, what is the probability that it is either pink or red?

A) 2/3	B) 1/8
C) 3/8	D) 3/4

Answer & Explanation Answer: A) 2/3

Explanation:

Given number of balls = 3 + 5 + 7 = 15

One ball is drawn randomly = 15C1

probability that it is either pink or red = $\frac{7 C_{1} + 3 C_{1}}{15 C_{1}} = \frac{7 + 3}{15} = \frac{10}{15} = \frac{2}{3}$

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Filed Under: Probability
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Q:

Which action is safe for a pwc?

A) towing a skier behind a pwc rated for 3 people with two persons on board	B) shutting off the engine before cleaning debris from the pump intake
C) seating a child to small to hold on the operator in front of the operator	D) All the above

Answer & Explanation Answer: C) seating a child to small to hold on the operator in front of the operator

Explanation:

Two passengers behind the operator is safe for a PWC.

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Filed Under: General Awareness
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Q:

Which is the best definition of Federalism?

A) Federalism encourages the practice of direct democracy at the state level rather than the national level.	B) The quality of federal supremacy in government.
C) A happy combination of mixed government.	D) Federalism enables the state and the national government to share power.

Answer & Explanation Answer: D) Federalism enables the state and the national government to share power.

Explanation:

Federalism ::

Federalism is a system based upon democratic rules and institutions in which the power to govern is shared between national and provincial/state governments, creating what is often called a federation.

Federalism is a political concept in which a group of members are bound together with a governing representative head.

Federalism enables the state and the national government to share power.

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Filed Under: Indian Politics
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Q:

Library is to Book as Book is to

A) Words	B) Pages
C) Binding	D) Cover

Answer & Explanation Answer: B) Pages

Explanation:

A Library consists of Books in the same way Book consists Pages.

Hence, Library : Book :: Book : Pages.

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Filed Under: Analogy
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Q:

What are the building blocks of Nucleic Acids?

A) Pentose Sugar	B) DNA
C) RNA	D) Nucleotides

Answer & Explanation Answer: D) Nucleotides

Explanation:

The building blocks of the nucleic acids are "Nucleotides".

Each nucleotide are composed of three parts. They are ::

1.Pentose sugar

2.Nitrogenous bases

3.Phosphoric acid.

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Filed Under: Biology
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Q:

What is the first step in Photosynthesis?

A) Formation of ATP	B) Joining of 3-carbon atom to form glucose
C) Ionization of water	D) Excitement of an electron of chlorophyll photon of light

Answer & Explanation Answer: D) Excitement of an electron of chlorophyll photon of light

Explanation:

The first step in Photosynthesis is Excitement of an electron of chlorophyll photon of light.

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Filed Under: General Science
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Q:

$L i_{3} P O_{4}$ compound name?

A) Lithium perchlorate	B) Lithium phyrite
C) Lithium phosphate	D) None

Answer & Explanation Answer: C) Lithium phosphate

Explanation:

The given compund ${Li}_{3} {PO}_{4}$ name is Lithium phosphate.

Lithium phosphate is a white crystal at room temperature. It is slightly soluble in water.

It can be used to produce glass, disk, colorful phosphor powder. It can also be used as a catalyst in some reactions.

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Filed Under: Chemistry
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Q:

Find the missing number in the given number series?

514, 470, ?, 415, 404

A) 441	B) 437
C) 426	D) 420

Answer & Explanation Answer: B) 437

Explanation:

Given number series is 514 470 ? 415 404

Here the pattern it follows is

514

514 - 44 = 470

470 - 33 = 437

437 - 22 = 415

415 - 11 = 404

Hence, the missing number in the given number series is 437.

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Filed Under: Odd Man Out
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