Math Chapter Wise

EnglishTGT 2005

Q181.A contest consists of predicting the results win, draw or defeat of 7 football matches. If A is chosen at random, then what is the probability that he predicts 4 matches correctly?

A8/37 B16/37 C280/37 D560/37

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EnglishTGT 2005

Q182.If the probability of survival of A and B till the end of the year is p and q respectively, then what will be the probability of survival of one of them at the end of the year.

Ap + q Bp + q – 2pq Cp + q – pq Dp + q + pq

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EnglishTGT 2005

Q183.Probability of three mutually exclusive events A, B and C are 2/3, 1/4 and 1/6 respectively then statement:

Ais true Bis false Cnothing can be said DAnything can happen.

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EnglishTGT 2005

Q184.A cubical die is tossed 6 times. What is the probability that 2 and 4 will come three times each?

A5/11664 B1/46656 C1/5184 DNone of these

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EnglishTGT 2005

Q185.In a test, a coin is tossed three times and heads are obtained twice. If the same test is repeated three times, what will be the probability of not getting success?

A(7/8)3 B(1/8)3 C(5/8)3 DNone of these

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EnglishTGT 2004

Q186.If four whole numbers taken at random are multiplied together, then the chance that the last digit in the product is 1, 3, 7 or 9 is

A17/676 B16/625 C16/676 D17/625

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EnglishTGT 2010, 1999

Q187.If A and B are such events that P(A) > 0 and P(B)≠0, then A P B is equal to

A1 () () P A B P B − ∪ B() 1 () P A B P A ∪ − C1 A P B + DNone of these

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EnglishTGT 2010

Q188.For any two independent events E1, and E2, 1 2 P{(E) (E) (E) (E)} ∪ ∩ ∩ ∪ ∩ ∩ ∪ ∩ ∩ ∪ ∩ ∩ is

A1 4 ≥ B1 4 ≤ C1 4 > D1 4 <

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EnglishTGT 2013

Q189.Probabilities to solve a certain problem by pragati and Tripti are respectively 1 3 and 1 2. The probability that the problem will be solved is:

A1/2 B1/3 C2/3 D1/6

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EnglishTGT 2010

Q190.If A and B are two mutually exclusive events then

A() () P A P B < B() () P A P B > C() () P A P B < DNone of these

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EnglishGIC Lecturer Exam- 2015

Q191.There are m persons sitting in a row. Two of them are select at random, The probability that the two selected persons are not together is–

A2/m B2 1 m(m 1) Cm(m 1)/(m 1)(m 2) D2 1 m

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EnglishGIC Lecturer Exam- 2015

Q192.If P(A∩ ∩ ∩B) = 1 2, 1 P(A B), 3 P(A) x and P(B) 2x, then the value of x is–

A1/2 B4/9 C1/2 D7/18

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EnglishGIC Lecturer Exam- 2015

Q193.The probability of getting a sum of 9 in the throw of two dices is–

A1/9 B1/12 C5/36 D1/6

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EnglishTGT 2011

Q194.The ratio of solving a problem is in favor of A is 3:4 and against B is 5:7. If both A and B try to solve the problem, then the probability of solving the problem will be-

A41/84 B16/21 C5/21 D1/4

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EnglishRajasthan TGT 2016

Q195.A problem is given to three students X, Y and Z whose chances of solving it are 1 1, 2 3 and 1 4 respectively. The chance that the problem will be solved, is equal to

A1/4 B1/2 C3/4 D1/3

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EnglishRajasthan TGT 2016

Q196.A coin is tossed 4 times. The probability that atleast one head turns up, is

A1/16 B1/4 C15/16 D1/2

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EnglishRajasthan TGT 2015

Q197.X speaks truth in 75% cases and Y in 80% cases. What is the probability that they contradict each other in stating the same fact?

A7/20 B13/20 C3/20 D1/5

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EnglishRajasthan TGT 2015

Q198.Two integers are selected at random from integers 1 to 11. If sum of both is even, then the probability of both the integers being odd is

A1/5 B2/5 C3/5 D4/5

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EnglishRajasthan TGT 2013

Q199.The probability that a point inside the circle is nearer to the circumference of the circle comparative from the centre of the circle is-

A1/4 B1/2 C2/3 D3/4

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EnglishRajasthan TGT 2013

Q200.Three six faced fair dice are tossed together. Then the probability that exactly two of the three numbers are same is-

A1/3 B5/12 C5/6 D2/5

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