Probashi Kallyan Bank (PKB) Written Exam Question Solution 2019

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Probashi Kallyan Bank (PKB) Written Exam Question Solution 2019:

Organization Name: Probashi Kallyan Bank (PKB)

Post Name And Vacancy:

1. Executive Officer -General (Officer Equivalent)-30

MCQ Exam Date: 18 October 2019

MCQ Exam time: 3.00 PM to 4.00 PM

Written Exam Date: 23 November 2019

Time: 2.30 PM to 4.30 PM

See/download Probashi Kallyan Bank (PKB) Written Exam Question Solution 2019 From below:

Written Math:

1. A train overtakes two persons walking along a railway track. The first one walks at 4.5 km/hr. The other one walks at 5.4 km/hr. The train needs 8.4 and 8.5 seconds respectively to overtake them. What is the speed of the train if both the persons are walking in the same direction as the train?

Ans: 81 km/hr

Solution:

2. A tank is filled by three pipes with uniform flow. The first two pipes operating simultaneously fill the tank in the same time during which the tank is filled by the third pipe alone. The second pipe fills the tank 5 hours faster than the first pipe and 4 hours slower than the third pipe. The time required by the first pipe is:

Ans: 15 Minutes

Solution:

Suppose, first pipe alone takes x hours to fill the tank .

Then, second and third pipes will take (x -5) and (x – 9) minutes respectively to fill the tank

(2x – 5)(x – 9) = x(x – 5)

x² – 18x + 45 = 0

(x – 15)(x – 3) = 0

x = 15

3. A container contains a mixture of two liquids A and B in the ratio 7: 5. When 9 litres of mixture are drawn off and the container is filled with B, the ratio of A and B becomes 7: 9. How many litres of liquid A was contained in the container initially?

Ans: 21 litres

Solution:

4. A bag contains 5 red and 3 green balls. Another bag contains 4 red and 6 green balls. If one ball is drawn from each bag. Find the probability that one ball is red and one is green.

Ans: 21/40

Solution:

We have,

Bag 1:

Red ball = 5

Green Ball = 3

Bag 2:

Red ball = 4

Green Ball = 6

Now, according to the question we will have to cases.

1. Probability of getting Red from Bag 1 and Green from Bag 2 = (5 /8) * (6 /10 ) = 30 /80.

2. Probability of getting Green from Bag 1 and Red from bag 2 = (3/8) * (4/10) = 12 /80.

Therefore, Probability of getting Red and Green,

= (30 /80) + (12/80) = 42/80 = 21/40.

5. Two ships are sailing in the sea on the two sides of a lighthouse. The angle of elevation of the top of the lighthouse is observed from the ships are 30 degree and 45 degree respectively. If the lighthouse is 100 m high, the distance between the two ships is:

Ans: 273 M

Solution:

Explanation:

Let AB be the lighthouse and C and D be the positions of the ships.

6. X= (√5+1)/(√5-1) and Y= (√5-1)/(√5+1) then find the value of (x^2+xy+ y^2)/(x^2-xy+y^2)

Solution:

X+Y= (√5+1)/(√5-1) +(√5-1)/(√5+1)=3
X²+XY+Y²
=X²+2XY+Y²-XY
=(X+Y)²-XY
=3²-1
=8

X²-XY+Y²
=X²+2XY+Y²-3XY
=(X+Y)²-3XY
=3²-3×1
=6
(X²+XY+Y²)/(X²-XY+Y²)
=8/6
=4/3

Ans: 4/3

7. ab+bc+ca=0 হলে 1/(a^2-bc)+1/(b^2-ac)+1/(c^2-ab)

Ans: 0

Solution:

Focus writing English:

Impact of television on social value

Culture is the inner core of civilization which in itself is the product of so many forces, historical, social and even natural. That is shy cultural values must undergo a change; if they remain static, they become irrelevant for the present day life. People following orthodox type of culture would lag behind the more advanced nations and there is a possibility that some of the new institutions which they adopt in their political and social life may not be in proper harmony with their cultural values. Such a conflict many times results in the degeneration of the society. That is why some time external methods are used to change the cultural values of a society formal harmony of certain ideas is resorted to. That is why some time external methods are used to change the cultural values of a society and as resistance to change is too much in an orthodox society formal harmony of certain ideas is resorted to. That is why television is increasingly used for tuning the people of India for a new social and political order, as a means of re-orienting our cultural values in accordance with the demand of the present day. As far as the impact is concerned there are so many factors which may be offsetting the impact.

Indian Television is trying to preserve our tradition particularly in fine arts by presenting the traditional dances and also folk songs on television. As far as the social values are concerned television is making an earnest effort to make these values relevant to the present day circumstances. Most of the serials take up the problems faced by the Indian women while discharging their functions as a member of the society. Exploitation of the women and their physical weakness have been the theme of so many serials. They have tried to project woman as an apostle of peace and non-violence. A woman needed in the present set of circumstances is a woman who can fight for justice and can face heavy odds with courage and determination. As a woman should be equal to man in political and social sphere the serials have tried to serve as a booster of their morale. No doubt in ancient Indian culture, woman was given equal status to man yet at a later stage, particularly during the Muslim rule, in India, she was relegated to the subordinate position. So television is trying to reorient this social aspect of our culture.

Some of the serials are making us aware of our environment and the changing political and social conditions of the world. They make us to consider religion something subordinate to other affairs in life as they wanted it to be a private affair only. This also is in accordance with the demands of the political set up we have adopted. Ours is a secular state and religions should not create differences among us. Communal harmony is more important than anything else because it may result in the disintegration of state. Otherwise also if the communal virus goes on doing harm we will never be able to become a strong country. Naturally many of serials are directed against this evil. Another social evil of the present times is the caste system. Though Gandhiji fought against it and though caste distinctions are legally banned yet caste plays an important role in politics as well as in life. In order to eradicate it completely it is necessary that the people should be made to think that caste is completely irrelevant to our day to day life. Our democracy will become a farce if caste is allowed to have its own way. So this is also one of the reforms which they try to impress upon people through television.

Television has become easy, simple and a regular source of entertainment for the people. By telecasting programmes three times a day, they have been able to keep the people occupies. Obviously this will make them more concerned with themselves and less concerned with their neighbor, more prone to entertainment than to even religious meditation and more interested in the latest developments than in any other thing. This utilization makes them busy with their own affairs.

Focus writing English: Bangla 

ইন্টারনেট: বিশ্বের সেতুবন্ধন

আবেদনপত্রঃ 

এলাকায় ব্রিজের জন্য সংশ্লিষ্ট কর্তৃপক্ষের বরবার আবেদনপত্র।

Mirpur 1, Dhaka, Bangladesh.