Q:

$If y = \frac{2 - x}{1 + x}, then what is the value of \frac{1}{y + 1} + \frac{2 y + 1}{y^{2} - 1} ?$

A) (1+x)(2-x)2x-1	B) (1-x)(2+x)x-1
C) (1+x)(2-x)1-2x	D) (1+x)(1-2x)2-x

Answer & Explanation Answer: C) (1+x)(2-x)1-2x

Explanation:

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

0 1762

Q:

Who invented the bifocal glasses?

A) Thomas Alva Edison	B) Benjamin franklin
C) Evangelista	D) Isaac Newton

Answer & Explanation Answer: B) Benjamin franklin

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Filed Under: Inventions
Exam Prep: Bank Exams

0 1762

Q:

Siderosis is a disease caused by the inhalation of

A) silica dust	B) iron dust
C) zinc dust	D) coal dust

Answer & Explanation Answer: B) iron dust

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Filed Under: General Awareness

0 1762

Q:

What is the full form of ITCZ?

A) Inter tropical converter zone	B) Inter tropical convergence zone
C) Inter tropical centre zone	D) None of these

Answer & Explanation Answer: B) Inter tropical convergence zone

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Filed Under: Indian Geography
Exam Prep: Bank Exams

6 1762

Q:

Which of the following river originates in Nepal and flows into the Ganges?

A) Kosi	B) Jhelum
C) Chenab	D) Ravi

Answer & Explanation Answer: A) Kosi

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Filed Under: Indian Geography
Exam Prep: Bank Exams

0 1762

Q:

Which one of the following is not a semiconductor?

A) Silicon	B) Germanium
C) Quartz	D) Gallium arsenide

Answer & Explanation Answer: C) Quartz

Explanation:

Semiconductors are the basic materials used in the present solid state electronic devices like diode, transistor, ICs, etc. 2. Lattice structure and the atomic structure of constituent elements decide whether a particular material will be insulator, metal or semiconductor. Semiconductors are elemental (Si, Ge) as well as compound (GaAs, CdS, etc.). Silicon, Germanium, Gallium Arsenide are semiconductors, but Quartz is an insulator.

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Filed Under: Chemistry
Exam Prep: Bank Exams

1 1762

Q:

What is the name of the hormone produced by thymus gland?

A) Thyroxine	B) Auxins
C) Cytokinins	D) Thymosin

Answer & Explanation Answer: D) Thymosin

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Filed Under: Biology
Exam Prep: Bank Exams

1 1762

Q:

Through photosynthesis at least a half of the total carbon dioxide fixation on earth is carried out by?

A) Pteridophytes	B) Bryophytes
C) Algae	D) Gymnosperms

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