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Q:

The Buckingham Canal, which has been declared a National Waterway of India recently, is a canal running from

A) Punjab to Haryana B) Mumbai to goa
C) Vijayawada to Villupuram D) Cochin to Kozhikode
 
Answer & Explanation Answer: C) Vijayawada to Villupuram

Explanation:
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Filed Under: Indian Economy

Q:

The Government of India has decided to declare which of the following rivers a ' National River '

A) Yamuna B) Kaveri
C) Ganga D) None of these
 
Answer & Explanation Answer: C) Ganga

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Filed Under: Indian Economy

Q:

Which among the following is an International river

A) Brahmaputra B) Cauvery
C) Krishna D) Narmada
 
Answer & Explanation Answer: A) Brahmaputra

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Filed Under: Indian Economy

Q:

Which one of the following is the highest gravity dam

A) Beas Dam B) Nangal Dam
C) Bhakra Dam D) Hirakud Dam
 
Answer & Explanation Answer: C) Bhakra Dam

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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:

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:

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