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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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Q:

How can we get 24 as an answer by using 6, 11, 3 and 9?

Answer

This can be solved in two ways using only 6, 11, 9 and 3 we must get 24.

1. {[(11–6) x 3] + 9}

By solving this we get

5 x 3 + 9 = 15 + 9 = 24.

2. [(9–6) x (11–3)]

= 3 x 8 = 24.

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Subject: Arithmetical Reasoning Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

The oxidation number of Cr in $K_{2} {Cr}_{2} O_{7}$ is

A) +6	B) -5
C) +3	D) -4

Answer & Explanation Answer: A) +6

Explanation:

We will rewrite the formula as an equation.

2K + 2Cr + 7O = 0

The zero comes from there being no overall charge on the compound.

Each oxidation number is represented by the element's symbol.

Since this compound is not a peroxide or superoxide, the oxidation value for O is -2

K being in group 1 has a +1 charge and therefore has an oxidation number of K is +1

Now, by putting known values in we have:

2(+1) + 2(Cr) + 7(-2) = 0

2 + 2Cr -14 = 0

2Cr = +12

Cr = +6.

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Q:

Which of the following is not a transverse wave?

A) Light waves	B) Radio waves
C) Sound waves	D) All the above

Answer & Explanation Answer: C) Sound waves

Explanation:

Light and Radio waves are both different frequency/wavelengths of electromagnetic radiation, which consists of two components electric and magnetic of perpendicular, transverse waves.

Sound, on the other hand, is a longitudinal wave which oscillates parallel to it's medium (back and forth instead of up and down).

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Filed Under: Physics
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Q:

Which of these does not contain a structural protein?

A) Tendons	B) Ovalbumin
C) Muscles	D) Ligaments

Answer & Explanation Answer: B) Ovalbumin

Explanation:

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Filed Under: Biology
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Q:

Negative divided by Negative

A) -ve	B) +ve
C) 0	D) Can't be determined

Answer & Explanation Answer: B) +ve

Explanation:

We know the Mathematical rules that

$\frac{+}{+} = + \frac{+}{-} = - \frac{-}{+} = - \frac{-}{-} = +$

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Filed Under: Arithmetical Reasoning
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Q:

The first step in solving an Ethical Dilemma is to

A) identify the alternatives	B) identify an etical situation and ethical issues involved
C) weigh the impact of each alternative on various stakeholders.	D) recognize and analyze the principal elements in the situation.

Answer & Explanation Answer: B) identify an etical situation and ethical issues involved

Explanation:

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Filed Under: Accounts Payable
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Q:

Study of sound is called

A) Agronomy	B) Accoustics
C) Aesthetics	D) Aeronautics

Answer & Explanation Answer: B) Accoustics

Explanation:

Accoustics is a subject deals with the Study of sound

Aesthetics is a Philosophy of fine arts

The science or art of flight is called Aeronautics

The science of soil management is called Agronomy.

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Filed Under: General Awareness
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