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Q:

How many parallelograms will be formed if 7 parallel horizontal lines intersect 6 parallel vertical lines?

A) 215 B) 315
C) 415 D) 115
 
Answer & Explanation Answer: B) 315

Explanation:
Parallelograms are formed when any two pairs of parallel lines (where each pair is not parallel to the other pair) intersect.
 

Hence, the given problem can be considered as selecting pairs of lines from the given 2 sets of parallel lines.
 

Therefore, the total number of parallelograms formed = 7C2 x 6C2 = 315
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Filed Under: Permutations and Combinations
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30 19114
Q:

Which one of the following scripts of ancient India was written from right to left ?

A) Brahmi B) Kharoshti
C) Nandnagari D) Sharada
 
Answer & Explanation Answer: B) Kharoshti

Explanation:

The Kharoshi script is an ancient script used by the ancient Gandhara culture of South Asia primarily in modern-day Afghanistan and Pakistan to write the Gandhari language (a dialect of Prakrit) and the Sanskrit language.

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Filed Under: Indian History
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32 19101
Q:

A towel, when bleached, was found to have lost 20% of its length and 10% of its breadth.  The percentage of decrease in area is:

A) 18% B) 28%
C) 38% D) 48%
 
Answer & Explanation Answer: B) 28%

Explanation:

Let original length = x and original breadth = y.  

Decrease in area = xy - 80100x×90100y = (7/25)xy

 

Decrease % =    (7/25)xy * (1/xy) * 100 = 28%

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Filed Under: Area
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3 19092
Q:

Which solution is most concentrated?

A) 6 g of solute in 10 ml of solution B) 20.5 g of solute in 50 ml of solution
C) 30 g of solute in 120 ml of solution D) 2.6 g of solute in 2 ml of solution
 
Answer & Explanation Answer: D) 2.6 g of solute in 2 ml of solution

Explanation:

A concentrated solution will contain the most solute molecules per solvent molecules.

Here in the given options,

1)  6/10 = 0.6

2) 20.5/50 = 0.41

3) 30/120 = 0.25

4) 2.6/2 = 1.3

 

Hence, option D) is most concentrated.

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Filed Under: Chemistry
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21 19033
Q:

How many degrees will the minute hand move, in the same time in which the second hand move 5400 ?

A) 90 degrees B) 85 degrees
C) 60 degrees D) 45 degrees
 
Answer & Explanation Answer: A) 90 degrees

Explanation:

Minute hand covers 5400/60 = 90°

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Filed Under: Clocks
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37 19026
Q:

Exception handling is targeted at

A) Compile time error B) Logical error
C) Run time error D) All of the above
 
Answer & Explanation Answer: C) Run time error

Explanation:
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Filed Under: Java
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12 19009
Q:

Telecom company Nokia belongs to which country?

A) Denmark B) USA
C) Sweden D) Finland
 
Answer & Explanation Answer: D) Finland

Explanation:

Telecom_company_NOKIA_company_belongs1542268061.png image

NOKIA belongs to the countyry Finland.

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Filed Under: General Awareness
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98 19001
Q:

Out of 120 students in aschool, 5% can play all the three games Cricket, Chess and Carroms. If so happens that the number of players who can play any and only two games is 30. The number of students who can play the Cricket alone is 40. What is the total number of those who can play Chess alone or Carroms alone ?

A) 45 B) 44
C) 46 D) 24
 
Answer & Explanation Answer: B) 44

Explanation:

k11483174138.jpg image

 

Given U=120

5% of 120 = 6

Therefore, Students who can play Chess alone or Carroms alone =  120 - (30+40+6)= 44

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Filed Under: Logical Venn Diagram
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97 18976