BITSAT Logical Reasoning Test - 8 - JEE MCQ

In the given picture, it is clear that in moving from 1st quadrant to the next in a clockwise sense, the half black coloured circle is rotating by an angle of 90° in the clockwise sense.
Hence, answer option 4 as shown is correct.

In each row and column, the position of three figures is interchanging by just changing the number of extending lines.
In the last row, the following figure is missing:

Therefore, option (1) is the correct option.

In each triangle, multiply the lower two numbers and subtract the upper number from the result to give the number in the centre.
First Figure:
6 x 4 - 3 = 24 - 3 = 21
Second Figure:
7 x 3 - 2 = 21 - 2 = 19
Third Figure:
9 x 5 - 1 = 45 - 1 = 44

In row 1, circles are shaded and then rotated by 90° and the outer figure is replaced by a star with the number of corner vertices same as the number of sides in the shape.
Hence, following the same rule, option 3 is correct.

In all other pairs, the first preys upon the second.
A cow eats grass.

All drugs (without any exception) have side effects. Therefore, there is no medicine without the risk of side effects. 
But, nowhere its given that drugs makes things more harmful than disease itself.
Thus, only conclusion I follows. 

From given statements and conclusion, it is clear that P is standing behind M and N and Q is behind P. Therefore, Q will be behind M and N.

The condition is as follow:
Here P: Lipika is a friend; Q: Lipika is a foe.

The logically consistent pairs for the statement, 'Dr. Lipika is either a friend or a foe' are
Since she cannot be a foe → she must be a friend.         
(NOT Q → P)
(NOT foe → Friend)
So, this statement valid.
Therefore, option A is correct.

Poor people who cannot afford to rent or buy shops are the only one who sells their goods on footpath. Calling police and throw them away and clear the footpath is not the right way because these people depend on this for their daily bread. The right way is to allocate some specific place where these vendors can sell their goods without any footpath blockage very easily.

The given statements clearly indicates that the fundamental rights are assured by the constitution, and parliament has the right to amend it. It doesn't mean that parliament included fundamental rights in the constitution, hence first conclusion does not follow.
Also, It is given that constitution assured fundamental rights, it does not mean that parliament didn't do it.
Thus, none of the conclusion follows.

According to conclusion 1, if we ask scientists to give up job and work as doctors we will not get the updated medicines and the cures for complicated diseases resulting in more problems. It is not going to decrease child mortality. Hence, this conclusion doesn't follow.
According to conclusion 2, yes the government must take efforts to decrease child mortality.
Thus, only conclusion 2 follows.
Hence, this is the correct answer.

Given statement:
Students passing from premier institutions such as IIM, IIT and IISC get placed in foreign countries and receive more salary than they receive in India.
(I) The Indian companies operate in India and the cost of operations, revenue and demand in India is much lower than that of the foreign countries due to the small economy of India compare to some big foreign countries.
So, Indian companies cannot pay the same salary as the companies in foreign countries do.
(II) Neither it is possible to bar the students of these premier institutes to move to other countries because the Indian constitution grants everybody the equality of opportunity.
Hence, Neither (I) nor (II) follows.

Given statements:
Water has no shape, has volume.
The knowledge is, like water, flowing from one side to the other.

Let us check each conclusion:
I. The knowledge is interdisciplinary.
In statement 2, knowledge is compared with water, showing that it has many forms. Thus, we can conclude that knowledge is interdisciplinary. Therefore, conclusion I follows.

II. The knowledge is bound within a specified area.
From statements 1 and 2, we can conclude that knowledge has no shape. It is certainly clear that knowledge has no boundaries. Thus, conclusion II does not follow.

III. The knowledge influences the core of mental activity directly.
From statement 1, we can conclude that knowledge has no boundaries but has the capacity to influence the core of mental activities. Thus, conclusion III follows.

Hence, both conclusions 1 and 3 follow from the given statement.

The rook is a piece in the round of chess taking after a stronghold. In the past, the piece was known as the tower, marquess, rector, and comes. Every player begins the game with two rooks, one on each of the corner squares on their own side of the board.
Hence, there are always four rooks in the game of chess.

From given statements and conclusion, it is clear that the word ‘rich’ in conclusion, has no relation with the given statements.

We have given,
P < Q, T < R and S, P = R
then
T < S and T < R = P < Q
Also, we have, P is younger to as many as those who are younger to S.
So, T < S < R = P < Q
Hence, Q is eldest.

Mangla is taller to Neela but as tall as Pushpa can be written as :
Mangala = Pushpa > Neela
Asha is taller to Sapna but not as tall as Neela can be written as :
Neela > Asha > Sapna
Combining these two, we get
Mangala = Pushpa > Neela > Asha > Sapna
It is clear that Sapna is shortest.
Hence, the correct answer is Sapna.

Read the information and compare their power. After arranging them in less powerful order we get,
Court > Police > Lawyer and,
Also, Police > the accused > the dead
Hence, the court is the most powerful.

According to the given condition, a bench is 18th from both sides.
Now, we know that
Total =(Position from the left +Position from the right) −1.
So, the total number of benches
= 18 +18−1 = 33
Hence, the correct answer is 35.

In the given question, 

Total students in the class = 36
The ratio of boys and girls = 2: 1
Let the number of boys be 2x
 and the number of girls be x.
Therefore:
⇒ 2x + x = 36
⇒ 3x = 36
⇒ x = 36/3
⇒ x = 12
Thus,
Number of boys = 2x = 24
Number of girls x = 12
According to the question: If there are 13 boys ahead of Sarita, then there are 24 − 13 = 11 boys behind Sarita.
The total number of students ahead of Sarita =18 (because Sarita's rank is 19th).
So, the number of girls ahead of Sarita = 18−13 = 5.
The number of girls behind Sarita = 12 − (5 + 1) = 6
(As Sarita herself is a girl, we add 1 to 5).
Hence, the answer is 6.
The option B is the correct answer.