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Subject :Maths    Class : Class 8

Which of the following options is true about a trapezium to construct it?

A One pair of opposite sides of a trapezium should be parallel and unequal should be given.
B Two non-parallel sides should be given.
C Both A and B
D None of these


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Subject :Maths    Class : Class 8

Directions : There are four options out of which one is correct. Choose the correct answer.
Which of the following can be four interior angles of a quadrilateral?

A140°, 40°, 20°, 160°
B270°, 150°, 30°, 20°
C40°, 70°, 90°, 60°
D110°, 40°, 30°, 180°


yeah if all angles of a quadrilateral are equal to 360, then why option A and not option D????its my request again to pls correct the errors and give tge correct answers.champstreet is known for olympiad and competitive exams training, but if they give wrong answers, whats the use of paying money to learn altogether???????pls pls pls fix all the bugs and make champstreet great again

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Subject :Maths    Class : Class 8

Directions : There are four options out of which one is correct. Choose the correct answer.
Which of the following figures do not satisfy any of the following properties?
- All sides are equal.
- All angles are right angles.
- Opposite sides are parallel.


AP
BQ
CR
DS


First of all, in P all angles are not right angles.Then again, all sides are not equal either.Lastly, only one pair of sides is parallel.So, it is my humble request to the concerned authorities to look into the matter and change the wrong answer to the correct one.

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Subject :Maths    Class : Class 10

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Subject :Maths    Class : Class 8

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Subject :Maths    Class : Class 8

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Subject :Maths    Class : Class 10

Ans 1: (Master Answer)

Class :

Since on tossing a coin, the outcomes 'head' and 'tail' are equally likely, the result of tossing a coin is completely unpredictable and so it is a fair way.


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Subject :Maths    Class : Class 10

Ans 1: (Master Answer)

Class :

Here is the answer for this questions : 

(i) Since he may or may not start the car thus the outcomes are not equally likely. 
(ii) The player may shoot or miss the shot. 
∴ The outcome are not equally likely. 
(iii) In advance it is known that the answer is to be either right or wrong. 
∴ The outcomes right or wrong are equally likely to occur. 
(iv) In advance it is known that newly born baby has to be either a boy or a girl. 
∴ The outcomes either a boy or a girl are equally likely to occur.


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Subject :Maths    Class : Class 10

Ans 1: (Master Answer)

Class :

Hi, here is the solutions for this question.

(i) Probability of an event E + Probability of the event 'not E' = 1.

(ii) The probability of an event that cannot happen is 0. Such an event is called impossible event.

(iii) The probability of an event that is certain to happen is 1. Such an event is called sure or certain event.

(iv) The sum of the probabilities of all the elementary events of an experiment is 1.

(v) The probability of an event is greater than or equal to 0 and less than or equal to 1.


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Subject :Maths    Class : Class 10

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