Searching for "select"

Q:

Select the correct statement (s).

A) When energy is transferred to the system from the surrounding as work, the surrounding do work on the system and the value of work (W) positive. B) When energy is transferred from the system to the surrounding as work, work is done on the surrounding and the value of W is negative.
C) Both (A) and (B) D) None of the above
 
Answer & Explanation Answer: C) Both (A) and (B)

Explanation:
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Filed Under: Chemistry
Exam Prep: AIEEE

Q:

Read the following information carefully and answer the questions given below it. There are five men A,B,C,D and E and six women P, Q, R, S, T and U. A, B and R are advocates, C, D, P, Q and S are doctors and the rest are teachers. Some teams are to be selected from amongst these eleven persons subject to the following conditions.

A, P and U have to be together.

B cannot go with D or R.

E and Q have to be together.

C and T have to be together.

D and P cannot go together.

C cannot go with Q.

If the team is to consist of two male advocates, two lady doctors and one teacher, the members of team are

 

A) A, P, R, S, U B) A, B, P, Q, U
C) B, E, Q, R, S D) A, B, P, U, S
 
Answer & Explanation Answer: D) A, B, P, U, S

Explanation:

From the given information; 

Members   Sex    Profession  

     A         M          Advocate
     Q         F           Doctor
     B         M          Advocate
     R         F           Advocate
     C         M          Doctor
     S         F           Doctor
     D         M          Doctor
     T         F           Teacher
     E         M          Teacher
     U         F           Teacher
     P         F           Doctor

 Answer (D)

 From option (D) A and B are two male advocates, P and S are two female doctors and u is female teacher.

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Filed Under: Situation Reaction Test
Exam Prep: TOEFL , GRE , GATE , CAT , Bank Exams , AIEEE
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Q:

A box contains 4 different black balls, 3 different red balls and 5 different blue balls. In how many ways can the balls be selected if every selection must have at least 1 black ball and one red ball ?

A) 24 - 1  

B) 2425-1   

C) (24-1)(23-1)25   

D) None 

A) A B) B
C) C D) D
 
Answer & Explanation Answer: C) C

Explanation:

It is explicitly given that all the 4 black balls are different, all the 3 red balls are different and all the 5 blue balls are different. Hence this is a case where all are distinct objects.

 

Initially let's find out the number of ways in which we can select the black balls. Note that at least 1 black ball must be included in each selection.

 

Hence, we can select 1 black ball from 4 black balls
or 2 black balls from 4 black balls.
or 3 black balls from 4 black balls.
or 4 black balls from 4 black balls.

 

Hence, number of ways in which we can select the black balls

 

= 4C1 + 4C2 + 4C3 + 4C4
= 24-1 ........(A)

 

Now let's find out the number of ways in which we can select the red balls. Note that at least 1 red ball must be included in each selection.

 

Hence, we can select 1 red ball from 3 red balls
or 2 red balls from 3 red balls
or 3 red balls from 3 red balls

 

Hence, number of ways in which we can select the red balls
= 3C1 + 3C2 + 3C3
=23-1........(B)

 

Hence, we can select 0 blue ball from 5 blue balls (i.e, do not select any blue ball. In this case, only black and red balls will be there)
or 1 blue ball from 5 blue balls
or 2 blue balls from 5 blue balls
or 3 blue balls from 5 blue balls
or 4 blue balls from 5 blue balls
or 5 blue balls from 5 blue balls.

 

Hence, number of ways in which we can select the blue balls
= 5C0 + 5C1 + 5C2 + … + 5C5
= 25..............(C)

 

From (A), (B) and (C), required number of ways
=  2524-123-1

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Filed Under: Permutations and Combinations
Exam Prep: GATE , CAT , Bank Exams , AIEEE
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Q:

What are Child Selectors ?

Answer

A child selector is used when you want to match an element that is the child of another specific element.
The parent and child selectors are separated by spaces.
The following selector locates an unordered list element within a paragraph element and makes a text within that element bold.


p > ul {font-weight: bold;}

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Subject: Web Technology

Q:

What is Contextual Selector ?

Answer

Contextual selector addresses specific occurrence of an element.
It is a string of individual selectors separated by white space (search pattern), where only the last element in the pattern is addressed providing it matches the specified contex.

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Subject: Web Technology

Q:

Which of he following Chief Minister has been selected for the award of ‘Transformative Chief Minister’ by The US India Business Council ?

A) N. Chandrababu Naidu B) Devendra Fadnavis
C) K. Chandra Shekar Rao D) Mamata Banerjee
 
Answer & Explanation Answer: A) N. Chandrababu Naidu

Explanation:

Chief Minister of Andhra Pradesh, N Chandrababu Naidu has been selected for another prestigious award. The US India Business Council has selected the CM for award of ‘Transformative Chief Minister’ and Naidu would be receiving coveted award at second annual West Coast summit which to be held in California on May 8, 2017.

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Filed Under: General Awareness
Exam Prep: Bank Exams

Q:

When do we use End-of-selection ?

Answer

End of the selection event is mostly used when we are writing HR-ABAP code. In the HR-ABAP code, data is retrieved in the start of selection event and printing on the list and all will be done at the end of the selection event.

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Subject: ABAP
Job Role: Analyst , IT Trainer

Q:

There are 3 sections with 5 questions each. If four questions are selected from each section, the chance of getting different questions is ?

A) 1000 B) 625
C) 525 D) 125
 
Answer & Explanation Answer: D) 125

Explanation:

Methods for selecting 4 questions out of 5 in the first section = 5 x 4 x 3 x 2 x 1/4 x 3 x 2 x 1 = 5. Similarly for other 2 sections also i.e 5 and 5


So total methods = 5 x 5 x 5 = 125.

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Filed Under: Permutations and Combinations
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