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Q:

Logical puzzle

You want to send a secret message to your friend Alex in the mail. But Sam, who you don't trust, has access to all your mail. So you put your message in a box with a lock. But you are not allowed to send a key! How can you get your message through securely?

Answer

- Send the box with the lock to Alex. 


- Alex can't open it, but can put another lock on the box. 


- Alex sends this box with the 2 locks back to you, you unlock your lock and send it back to Alex again.


- So there is just Alex's lock on the box and Alex can now open it.

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Subject: Logic Puzzles

17 4928
Q:

Which choice best describes the polarity of BrF5?

A) nonpolar bonds / nonpolar molecule B) nonpolar bonds / polar molecule
C) polar bonds / polar molecule D) polar bonds / nonpolar molecule
 
Answer & Explanation Answer: C) polar bonds / polar molecule

Explanation:
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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , GATE
Job Role: Analyst , Bank Clerk

2 4927
Q:

Which of the following statements about ddntps is true?

A) They have a hydrogen at the 3’ carbon of the sugar. B) DNA polymerase can add a new dNTP to a 3’ ddNTP.
C) They have a free 3’-hydroxyl group on the ribose sugar. D) They have an oxygen at the 2’ carbon of the ribose sugar.
 
Answer & Explanation Answer: A) They have a hydrogen at the 3’ carbon of the sugar.

Explanation:

ddNTPs - Dideoxynucleotides and abbreviated as ddNTPs.

 

They are chain-elongating inhibitors of DNA polymerase, used in the Sanger method for DNA sequencing.

 

They have a hydrogen at the 3’ carbon of the ribose sugar.

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

3 4925
Q:

The 112-feet tall bust of ‘Adiyogi’ Lord Shiva at the Isha Yoga Foundation in ___________ has been declared the world’s largest bust by the Guinness Book of World Records.

A) Telangana B) Andhra Pradesh
C) Haryana D) Tamil Nadu
 
Answer & Explanation Answer: D) Tamil Nadu

Explanation:

The 112-feet tall bust of ‘Adiyogi’ Lord Shiva at the Isha Yoga Foundation has been declared the world’s largest bust by the Guinness Book of World Records. The Guinness had announced this on its website. The bust at the Isha Yoga Foundation on the outskirts of Coimbatore, Tamil Nadu was unveiled by Prime Minister Narendra Modi on 24 February.

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Filed Under: General Awareness
Exam Prep: Bank Exams , CAT
Job Role: Bank Clerk

2 4925
Q:

The worst affected state of India, by the menace of sea erosion is ________

A) Kerala B) Orissa
C) Gujarat D) Andhra Pradesh
 
Answer & Explanation Answer: A) Kerala

Explanation:
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Filed Under: Indian Geography

10 4923
Q:

Mahaparinirvana Temple is located at ______.

A) Bodh Gaya B) Shravasti
C) Sarnath D) Kushinagar
 
Answer & Explanation Answer: D) Kushinagar

Explanation:
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Filed Under: Indian Geography
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

17 4923
Q:

The second Five Year plan was based on

A) Mahalanobis Model B) Vakil and Brahmananda's Wage -Goods Model
C) Harrod - Domar Growth Model D) Solow Growth Model
 
Answer & Explanation Answer: A) Mahalanobis Model

Explanation:
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Filed Under: Indian Economy

4 4921
Q:

Logical puzzle

At a restaurant, how could you choose one out of three desserts with equal probability with the help of a coin? What if the coin is biased and the bias is unknown?

Answer

Our solution:


Toss the coin twice.
Let TH, HT and TT correspond to the three choices.
And if you get HH, just repeat (so it takes 8/3 tosses on average).


BIASED COIN

If the coin was biased, TH and HT would occur with equal probability.
So you could assign THHT, HTTH and THTH to the three choices, with other 4-toss outcomes rejected.
Or you could assign HTT, THT and TTH to the three choices, with other 3-toss outcomes rejected.

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Subject: Logic Puzzles

18 4921