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Q:

The largest river of Penisular India is

A) Narmada	B) Godavari
C) Mahanadi	D) Cauvery

Answer & Explanation Answer: B) Godavari

Explanation:

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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

Explanation:

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Filed Under: Indian Economy

Q:

Where is the Forest Reserve Institute of India located

A) Bhopal	B) Dehradum
C) Lucknow	D) Delhi

Answer & Explanation Answer: B) Dehradum

Explanation:

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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

Explanation:

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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+ $2 C_{1}$ =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 $9 C_{3}$ =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

Q:

If Aug 15th,2012 falls on Thursday then June 11th,2013 falls on which day ?

A) Wednesday	B) Saturday
C) Monday	D) Tuesday

Answer & Explanation Answer: A) Wednesday

Explanation:

First,we count the number of odd days for the left over days in the given period.

Here,given period is 15.8.2012 to 11.6.2013

Aug Sept Oct Nov Dec Jan Feb Mar Apr May Jun

16 30 31 30 31 31 28 31 30 31 11(left days)

2 + 2 + 3 + 2 + 3 + 3 + 0 + 3 + 2 + 3 + 4 (odd days) = 6 odd days

So,given day Thursday + 6 = Wednesday is the required result.

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Filed Under: Calendar

Q:

If Feb 12th,1986 falls on Wednesday then Jan 1st,1987 falls on which day?

A) Wednesday	B) Tuesday
C) Thursday	D) Friday

Answer & Explanation Answer: C) Thursday

Explanation:

First,we count the number of odd days for the left over days in the given period.

Here,given period is 12.2.1986 to 1.1.1987

Feb Mar Apr May June July Aug Sept Oct Nov Dec Jan

16 31 30 31 30 31 31 30 31 30 31 1 (left days)

2 + 3 + 2 + 3 + 2 + 3 + 3 + 2 + 3 + 2 + 3 + 1(odd days) = 1 odd day

So,given day Wednesday + 1 = Thursday is the required result.

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Filed Under: Calendar

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