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Q:

If the position of the first, sixth digits of the number 2796543018 are interchanged, similarly the positions of the the second and seventh digits are interchanged and so on, which of the following will be the left of seventh digit from the left end?

A) 1 B) 7
C) 0 D) 8
 
Answer & Explanation Answer: A) 1

Explanation:

The new number formed is 4  3  0  1  8  2  7  9  6  5

The seventh digit from the left is 7, the 3rd digit from the left of 7 is 1

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Filed Under: Number, Ranking and Time Sequence Test

Q:

Geostationary orbit is at a height of

A) 6 km B) 1000 km
C) 3600 km D) 36,000km
 
Answer & Explanation Answer: D) 36,000km

Explanation:
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Filed Under: World Geography

Q:

In the structure of planet Earth ,below the mantle, the core is mainly made up of which one of the following

A) Aluminium B) Chrromium
C) Iron D) Silicon
 
Answer & Explanation Answer: C) Iron

Explanation:
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Filed Under: World Geography

Q:

Which is the second most abundant metal in the earth's crust

A) Iron B) Aluminum
C) Copper D) Zinc
 
Answer & Explanation Answer: B) Aluminum

Explanation:
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Filed Under: World Geography

Q:

An instrusion of magma along a bedding plane is called a

A) Dyke B) Still
C) Batholith D) Laccolith
 
Answer & Explanation Answer: C) Batholith

Explanation:
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Filed Under: World Geography

Q:

The most abundent metal in the Earth's crust is 

A) Calcium B) Aluminium
C) Iron D) Magnesium
 
Answer & Explanation Answer: B) Aluminium

Explanation:
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Filed Under: World Geography

Q:

Which of the following is present in the largest amount in terms of percent by mass in the earth's crust

A) Silicon B) Oxygen
C) Carbon D) Calcium
 
Answer & Explanation Answer: B) Oxygen

Explanation:
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Filed Under: World Geography

Q:

If 2 tables and 3 chairs cost Rs, 3500 and 3 tables and 2 chairs cost Rs. 4000, then how much does a table cost ?

A) 500 B) 1000
C) 1500 D) 2000
 
Answer & Explanation Answer: B) 1000

Explanation:

Let the cost of a table and that of a chair be Rs. x and Rs, y respectively.

Then, 2x + 3y = 3500 ...(i)

and 3x + 2y = 4000 .....(ii)

solving (i) and (ii) we get x = 1000, y = 500 

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Filed Under: Simplification