Q:

A boy multiplied 987 by a certain number and obtained 559981 as his answer. If in the answer both 98 are wrong and the other digits are correct, then the correct answer would be ?? please explain in detail

A) 553681	B) 555181
C) 555681	D) 556581

Answer & Explanation Answer: C) 555681

Explanation:

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Q:

Conductivity in a metal results from the metal atoms having

A) highly mobile electrons in the valence shell	B) high electronegativity
C) high ionization energy	D) highly mobile protons in the nucleus

Answer & Explanation Answer: A) highly mobile electrons in the valence shell

Explanation:

The outer most electrons that are free to move are called valency electrons that are responsible for the conductivity in the metal atoms.

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Q:

Which of the following indexes is developed to measure life expectancy, level of literacy, education and standard of living of people in a country?

A) Inflation	B) Sensex
C) SLR	D) Human Development Index (HDI)

Answer & Explanation Answer: D) Human Development Index (HDI)

Explanation:

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Filed Under: Indian Economy

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Q:

National Khadi Festival 2018 held in

A) Hyderabad	B) Kolkata
C) Bangaluru	D) Mumbai

Answer & Explanation Answer: D) Mumbai

Explanation:

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Q:

Browning of paper in old books is caused by

A) oxidation of cellulose	B) collection of dust
C) frequent use	D) lack of aeration

Answer & Explanation Answer: A) oxidation of cellulose

Explanation:

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Q:

_______ is the largest city in South Africa and very famous for goldmines.

A) Cape Town	B) Johannesburg
C) Kimberley	D) Durban

Answer & Explanation Answer: B) Johannesburg

Explanation:

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Q:

Representation level data models provide the concepts that are close to the way many users perceive data

A) TRUE

B) FALSE

Answer & Explanation Answer: B) FALSE

Explanation:

High level data models provide the concepts that are close to the way many users perceive data

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Subject: Database
Job Role: Database Administration

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Q:

Which of the following equations represents Photosynthesis?

A) 6CO2 + 6H2O -----> C6H12O6 + 6O2	B) C6H12O6 + 6O2 -----> CO2 + 6H2O
C) CO2 + H2O -----> C6H12O6 + 6O2	D) 6O2 + 6H2O -----> C6H12O6 + 6CO2

Answer & Explanation Answer: A) 6CO2 + 6H2O -----> C6H12O6 + 6O2

Explanation:

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms activities.

Photosynthesis can be represented using a chemical equation.

The overall balanced equation is

$6 {CO}_{2} + 6 H_{2} O \overset{Sunlight}{\to} C_{6} H_{12} O_{6} + 6 O_{2} (S o u r c e o f C a r b o n & O x y g e n) + (S o u r c e o f E l e c t r o n s & H y d r o g e n) + E n e r g y t h a t d r i v e s P h o t o s y n t h e s i s - - - - > S u g a r + G a s p r o d u c e d b y s p l i t t i n g w a t e r .$

Where

CO2 = carbon dioxide

H2O = water

C6H12O6 = glucose

O2 = oxygen.

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