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Q:

The $C O_{2}$ emissions in million metric tons over 3 years are given in the following table.

What is the increase in the percentage of $C O_{2}$ emission from year 2016 to 2017?

A) 36.36%	B) 26.36%
C) 63.63%	D) 36.45%

Answer & Explanation Answer: A) 36.36%

Explanation:

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Filed Under: Percentage
Exam Prep: AIEEE , Bank Exams , CAT

Q:

I gain 19% if I sell an article for Rs. 595. What would be my gain or loss percentage if I sell it for Rs. 475?

A) Gain 5%	B) Loss 5%
C) Loss 10%	D) Gain 10%

Answer & Explanation Answer: B) Loss 5%

Explanation:

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

Q:

The simplified form of ${(4 x + 3)}^{2} . (3 x - 5) - (4 x^{3} - 12 x^{2} + 9 x - 20)$ is

A) 6x2- 48x - 50	B) 24x3 + 2x2 - 32x - 15
C) 44x3 + 4x2 - 102x - 25	D) 24x3 + 8x2 - 42x - 50

Answer & Explanation Answer: C) 44x3 + 4x2 - 102x - 25

Explanation:

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Filed Under: Square Roots and Cube Roots
Exam Prep: AIEEE , Bank Exams , CAT

Q:

What value should come in place of question mark (?) in the following question?

$44^{2} + 23^{2} = {(?)}^{2} + 4^{4}$

A) 47	B) 65
C) 52	D) 41

Answer & Explanation Answer: A) 47

Explanation:

$1936 + 529 = ?^{2} + 256 2465 = ?^{2} + 256 ?^{2} = 2465 - 256 ?^{2} = 2209 ? = 47$

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: GATE , Bank Exams

Q:

What value should come in place of the question mark (?) in the following question?

$68 x \sqrt{?} - 3421 = 591$

A) 3249	B) 3481
C) 3364	D) 3136

Answer & Explanation Answer: B) 3481

Explanation:

$68 x \sqrt{?} - 3421 = 591 \sqrt{?} = 4012 / 68 ? = 59 x 59 ? = 3481$

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: GATE , Bank Exams

Q:

If x + y = 12 and xy = 32, then what is the value of $x^{2} + y^{2}$ ?

A) 24	B) 144
C) 128	D) 80

Answer & Explanation Answer: D) 80

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

What value should come in place of the question mark (?) in the following question?

${(?)}^{2} % of 650 = {(20)}^{2} + 4^{2}$

A) 8	B) 64
C) 8	D) 642

Answer & Explanation Answer: A) 8

Explanation:

$?^{2} = \frac{400 + 16}{650} x 100 ? = 8$

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

Q:

What value should come in place of the question mark (?) in the following question?

$\frac{5^{2} x 14 + 1450}{18} = 1998 \div ?$

A) 18.25	B) 19.98
C) 34.58	D) 65.25

Answer & Explanation Answer: B) 19.98

Explanation:

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: GATE , Bank Exams

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