Q:

What 5 - digit number has the following features :

If we put the numeral 1 at the beginning, we get a number three times smaller than if we put the numeral 1 at the end of the number?

Answer

Let the 5 digit number be represented by abcde.

Then the 6 digit number, 1abcde x 3 = abcde1 (another 6 digit number)

Now let Y = abcde

Then (100000 + Y) x 3 = (Y x 10) + 1

300000 + 3Y = 10Y + 1

7Y = 299999

Y = 299999 ÷ 7 = 42857

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Subject: Math Puzzles

22 8452

Q:

Which of the following is called 'the King of Chemicals' ?

A) Nitric acid	B) Hydrochloric acid
C) Silver nitrate	D) Sulphuric acid

Answer & Explanation Answer: D) Sulphuric acid

Explanation:

Sulphuric acid is called the King of Chemicals because it is used in the preparation of a very large number of other useful chemicals such as hydrochloric acid, nitric acid, dyes, drugs etc. In fact the annual production of shulpuric acid in a country is a measure of the economy of the country.

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Filed Under: Chemistry

9 8451

Q:

Which one of the following liberty is not embodied in the Preamble to the Constitution of India?

A) Liberty of Thought	B) Liberty of Expression
C) Liberty of Belief	D) Economic Liberty

Answer & Explanation Answer: D) Economic Liberty

Explanation:

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Filed Under: Indian Politics

9 8449

Q:

LONGEST RIVER IN ODISHA

Answer

Mahanadi

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Subject: Indian Geography

21 8445

Q:

Hoshangabad is situated on the bank of the river

A) Godavari	B) Narmada
C) Musi	D) Mahanadi

Answer & Explanation Answer: B) Narmada

Explanation:

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Filed Under: Indian Geography

20 8443

Q:

Which type of Stem modification is seen in banana ?

A) Rhizome	B) Stem tuber
C) Corn	D) Bulb

Answer & Explanation Answer: A) Rhizome

Explanation:

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Filed Under: Biology
Exam Prep: AIEEE

38 8438

Q:

The formula C6H14 represents the hydrocarbon ___.

A) Hexene	B) Heptyne
C) Hexane	D) Hexyne

Answer & Explanation Answer: C) Hexane

Explanation:

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Filed Under: Chemistry
Exam Prep: Bank Exams

0 8435

Q:

______________ is made up of smoke and fog.

A) Cloud	B) Smog
C) Frost	D) Haze

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