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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 8345
Q:

A woman’s voice is shriller than a man’s voice due to

A) weak vocal chords B) lower frequency
C) higher frequency D) higher amplitude
 
Answer & Explanation Answer: C) higher frequency

Explanation:

As the frequency of sound is higher, women have shriller voices than men.

The shrillness or pitch of a sound is determined by its frequency. The higher the pitch shriller the voice. As the sounds produced by vocal cords of women are higher than men so women have shriller voices than men. Because their vocal cord is of smaller size. As their vocal cord is more stretched than men's.

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

7 8343
Q:

What is the purpose of adding Gypsum to the cement?

 

A) For lubrication B) To slow down its rate of setting
C) To increase its rate of setting D) To make it strong
 
Answer & Explanation Answer: B) To slow down its rate of setting

Explanation:
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Filed Under: Chemistry
Exam Prep: Bank Exams

1 8341
Q:

Select the missing term based on the given related pair.

 

 

 

A) Larva B) Caterpillar
C) Kitten D) Child
 
Answer & Explanation Answer: B) Caterpillar

Explanation:
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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams

0 8331
Q:

Which of the following is/are 'rain cloud'?

1. Cirrus
2. Nimbostratus
3. Cumulonimbus
4. Altocumulus

A) 1 and 2 only B) 2 and 3 only
C) 3 and 4 only D) 1 and 4 only
 
Answer & Explanation Answer: B) 2 and 3 only

Explanation:
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Filed Under: General Awareness
Exam Prep: Bank Exams

0 8326
Q:

Find the odd word/letters/number from the given alternatives.

(A) BCE (B) WXZ (C) MNP (D) GHK

A) A B) B
C) C D) D
 
Answer & Explanation Answer: D) D

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

0 8324
Q:

Burning Magnesium ribbon produces white ash, which dissolves in water to form____.

 

A) Magnesium Halides B) Magnesium Oxide
C) Magnesium Hydroxide D) Magnesium Sulphate
 
Answer & Explanation Answer: C) Magnesium Hydroxide

Explanation:
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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams

1 8323
Q:

India's First Rural Telephone Exchange is located in 

A) Karnataka B) Andhra Pradesh
C) Kerala D) Uttar Pradesh
 
Answer & Explanation Answer: A) Karnataka

Explanation:
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Filed Under: General Awareness

18 8321