Questions

Q:

If a Siren sounds for every 5 seconds, how many times will it sound in ¾ of an hour?

A) 541 times B) 540 times
C) 450 times D) 275 times
 
Answer & Explanation Answer: A) 541 times

Explanation:

There are 60 minutes in an hour.

In ¾ of an hour there are (60 × ¾) minutes = 45 minutes.

In ¾ of an hour there are (60 × 45) seconds = 2700 seconds.

Siren sounds for every 5 seconds.

In 2700 seconds = 2700/5 = 540 times.

The count start after the first sound, the Siren will sound 541 times in ¾ of an hour.

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Q:

What are the rungs of the DNA ladder made of?

A) phosphates and sugars B) nitrates and sugars
C) nitrates and phosphates D) sugars and hydrates
 
Answer & Explanation Answer: C) nitrates and phosphates

Explanation:

The rungs or the sides of the DNA ladder is made of Deoxyribose, which is a pentose, and a phosphate group are the two molecules together form the two sides of the DNA i.e, A sugar (deoxyribose) and a phosphate.

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Filed Under: Biology
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Q:

All of the following are constituents of RNA molecule except _____

A) Thymine B) Adenine
C) Uracil D) Guanine
 
Answer & Explanation Answer: A) Thymine

Explanation:
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Filed Under: Chemistry
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Q:

Which player has won the Gold Medal at World Badminton Championship 2017 ?

A) Nozomi Okuhara B) Saina Nehwal
C) Carolina Marin D) P V Sindhu
 
Answer & Explanation Answer: A) Nozomi Okuhara

Explanation:
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Q:

Where does the chemical reactions called Mellaird reaction takes place?

Answer

In cooking

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Subject: General Science

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Q:

How do you display current date and time in MS Excel ?

A) Time () B) Now ()
C) Date () D) Today ()
 
Answer & Explanation Answer: B) Now ()

Explanation:

To display current date and time in MS Excel, we use Now() method. 

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Q:

Which of the following is an element

A) alumina B) brass
C) graphite D) silicon
 
Answer & Explanation Answer: D) silicon

Explanation:
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Filed Under: Chemistry

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Q:

Auckland is the largest city located in which country ?

A) South Africa B) New Zealand
C) Australia D) West Indies
 
Answer & Explanation Answer: B) New Zealand

Explanation:
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Filed Under: Famous Places

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