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Q:

When was the first national Forest Policy issued by the Government of India

A) 1940 B) 1952
C) 1942 D) 1999
 
Answer & Explanation Answer: B) 1952

Explanation:
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Filed Under: Indian Economy

Q:

Nuclear energy is a mineral based source, it is derived from

A) Uranium B) Thorium
C) Plutonium D) All of these
 
Answer & Explanation Answer: D) All of these

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Filed Under: Indian Economy

Q:

Which one among the following is a 'Ht Spot' for biological diversity in India

A) Western Ghat B) Sundarban
C) Chilka Lagoon D) Eastern Ghat
 
Answer & Explanation Answer: B) Sundarban

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Filed Under: Indian Economy

Q:

Sundarbans of Estern India is an example of

A) Forest Ecosystem B) Mangrove Ecosystem
C) Grassland Ecosystem D) Marine Ecosystem
 
Answer & Explanation Answer: B) Mangrove Ecosystem

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Filed Under: Indian Economy

Q:

Singbhum is famous for 

A) Coal B) Copper
C) Iron D) Aluminium
 
Answer & Explanation Answer: C) Iron

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Filed Under: Indian Economy

Q:

Which state in India  is estimated to have the largest coal reserves in India

A) Bihar B) Jharkhand
C) Madhya Pradesh D) Orissa
 
Answer & Explanation Answer: B) Jharkhand

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Filed Under: Indian Economy

Q:

From a total of six men and four ladies a committee of three is to be formed. If Mrs. X is not willing to join the committee in which Mr. Y is a member, whereas Mr.Y is willing to join the committee only if Mrs Z is included, how many such committee are possible?

A) 91 B) 104
C) 109 D) 98
 
Answer & Explanation Answer: A) 91

Explanation:

We first count the number of committee in which

(i). Mr. Y is a member
(ii). the ones in which he is not

Case (i): As Mr. Y agrees to be in committee only where Mrs. Z is a member.
Now we are left with (6-1) men and (4-2) ladies (Mrs. X is not willing to join).

We can choose 1 more in5+2C1=7 ways.

Case (ii): If Mr. Y is not a member then we left with (6+4-1) people.
we can select 3 from 9 in 9C3=84 ways.

Thus, total number of ways is 7+84= 91 ways.

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Filed Under: Permutations and Combinations

Q:

There are five cards lying on the table in one row. Five numbers from among 1 to 100 have to be written on them, one number per card, such that the difference between the numbers on any two adjacent cards is not divisible by 4. The remainder when each of the 5 numbers is divided by 4 is written down on another card (the 6th card) in order. How many sequences can be written down on the 6th card ?

A) 4 x 3^4 B) 3^4
C) 4^3 D) 3 x 4^3
 
Answer & Explanation Answer: A) 4 x 3^4

Explanation:

The remainder on the first card can be 0,1,2 or 3 i.e 4 possibilities.
The remainder of the number on the next card when divided by 4 can have 3 possible values (except the one occurred earlier).

For each value on the card the remainder can have 3 possible values.

The total number of possible sequences is: 4*3^4

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Filed Under: Permutations and Combinations