8
Q:

O and O' are the center of the two circles with radii 7cm and 9cm respectively. The distance between the centers is 20cm. If PQ be the transverse common tangent to the circles, which cuts OO' at X, what is the length of O'X in cm ?

A) 10 B) 6
C) 35/4 D) 45/4

Answer:   D) 45/4



Explanation:

As clear from the figure itself, triangle OQX and triangle O'PX are similar.

So,

OQ/O'P = OX/O'X

=> OX = (7/9)xO'X

And since, OX + O'X = 20

=> (7/9)xO'X + O'X = 20

=> O'X = 45/4

Q:

Find the similarity in the following:

 

Plays, Movies, Documentary, Road shows

 

A) All can be used to convey social messages B) All are show-cased in theaters
C) All of them are only in English language D) No similarity
 
Answer & Explanation Answer: A) All can be used to convey social messages

Explanation:
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1 1414
Q:

Six books are kept one above the other. Hindi is just above Sanskrit. The English is between Mathematics and Science. Law is between Hindi and Mathematics. Which book is at the fourth position from top?

 

A) Mathematics B) Law
C) Hindi D) English
 
Answer & Explanation Answer: B) Law

Explanation:
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1 278
Q:

P, W, Q, X, R, Y, Z and S sit randomly in a circle facing each other. Consider the following information and questions based on it.

 

1. Y sits exactly between Q and R

2. P does not sit next to either X or Z

3. Z is to the immediate right of Q

4. S sits third from left of X and the right of Y.

 

X sits between -

A) R and Q B) W and R
C) Q and Y D) S and W
 
Answer & Explanation Answer: B) W and R

Explanation:
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0 324
Q:

P, W, Q, X, R, Y, Z and S sit randomly in a circle facing each other. Consider the following information and questions based on it.

 

1. Y sits exactly between Q and R

2. P does not sit next to either X or Z

3. Z is to the immediate right of Q

4. S sits third from left of X and the right of Y.

 

If they all were facing outside the circle, W would be the left of -

A) X B) S
C) P D) Cannot be determined
 
Answer & Explanation Answer: C) P

Explanation:
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0 265
Q:

P, W, Q, X, R, Y, Z and S sit randomly in a circle facing each other. Consider the following information and questions based on it.

 

1. Y sits exactly between Q and R

2. P does not sit next to either X or Z

3. Z is to the immediate right of Q

4. S sits third from left of X and the right of Y.

 

Who sits to the left of S?

A) Z B) X
C) P D) Q
 
Answer & Explanation Answer: A) Z

Explanation:
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0 305
Q:

Answer the questions based on the following information.

 

Six colleagues are sitting in a circle and are facing the center of the circle. Diana is between Puskar and Padma. Priyanka is between Mahesh and Lucky. Puskar and Mahesh are opposite to each other.

 


Who is sitting opposite to Priyanka?

A) Puskar B) Diana
C) Padma D) Lucky
 
Answer & Explanation Answer: B) Diana

Explanation:
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0 1805
Q:

Answer the questions based on the following information.

 

Six colleagues are sitting in a circle and are facing the center of the circle. Diana is between Puskar and Padma. Priyanka is between Mahesh and Lucky. Puskar and Mahesh are opposite to each other.

 

Who is just right to Padma?

A) Diana B) Lucky
C) Puskar D) Priyanka
 
Answer & Explanation Answer: A) Diana

Explanation:
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0 2460
Q:

Answer the questions based on the following information.

 

Six colleagues are sitting in a circle and are facing the center of the circle. Diana is between Puskar and Padma. Priyanka is between Mahesh and Lucky. Puskar and Mahesh are opposite to each other.

 

Who are the neighbours of Mahesh?

A) Puskar and Diana B) Diana and Priyanka
C) Priyanka and Padma D) Lucky and Priyanka
 
Answer & Explanation Answer: C) Priyanka and Padma

Explanation:
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2 2264