Questions

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 4888
Q:

Who has been appointed as new Chairman of Indian Railway Board in August 2017 ?

A) Ashwani Lohani B) S. K. Bhagat
C) Akhil Agarwal D) A. K. Mittal
 
Answer & Explanation Answer: A) Ashwani Lohani

Explanation:

Ashwani Lohani is IRSME officer, appointed as new Chairman of the Indian Railway Board soon after A.K. Mittal stepped down from the post. He is former Chairman & Managing Director of Air India.

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

3 4884
Q:

In computer short cut keys, F4 key is used to

A) To display the items in the active list B) To display help
C) To display system properties dialog box D) To display desktop
 
Answer & Explanation Answer: A) To display the items in the active list

Explanation:

To display the items in the active list.

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

11 4884
Q:

In what US state does the Mississippi River begin?

Answer

Minnesota

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Subject: World Geography

0 4882
Q:

Plant development is influenced by

A) quality, quantity and duration of light B) quality and duration of light
C) quality and quantity of light D) quality of light only
 
Answer & Explanation Answer: A) quality, quantity and duration of light

Explanation:

Plant_development_is_influenced_by1553061037.jpg image

Plant development is influenced by quality, quantity and duration of light. Plants cannot get too much light, but they can get too much of the heat energy that comes with the light.

 

Plants requires what quantity of light?

 

* Most of the garden vegetables require full sun, i.e 6 - 8 hrs of direct sunlight daily.

* Plants that grow in partial sun only need 3 - 4 hrs of direct sunlight daily.

* While plants that thrive in shade need less than 2 hours of sunlight daily.

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

3 4882
Q:

Which of these is a receptor molecule?

cell1528281904.jpg image

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

Explanation:

The receptor molecules, which receive signals from outside the cell, passing the signal to the inside.

 

In order for a nerve cell, or any cell, to perceive its environment, it needs a sensory apparatus. And for an individual cell, most of that sensation is derived at the cell surface. So, it expresses on its cell surface proteins that span across the membrane.

In the outside world, these proteins can act to receive signals, catching molecules on the outside and then as the molecule passes to the inside of the cell, they can send signals like alarm signals that can tell the cell that a particular molecule is outside.

 

Hence, here B is the receptor cell.

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

4 4882
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 4881
Q:

Who was the first black tennis player to win a Wimbledon title

A) Steffi Bucher B) Gegata Sen
C) Althea Gibson D) Sucheta Kriplani
 
Answer & Explanation Answer: C) Althea Gibson

Explanation:
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Filed Under: Sports

1 4875