Math Chapter Wise

EnglishTGT 2013

Q181.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

Q182.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

Q183.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

Q184.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

Q185.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

Q186.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

Q187.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

Q188.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

Q189.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

Q190.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

Q191.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

Q192.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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EnglishRajasthan TGT 2011

Q193.If 1 P(A B), 2 ∪ = 1 P(A B) 2 ∪ = ∪ = and 2P(A) P(B) P, = then P is equal to

A1/2 B1/3 C1/4 D2/3

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EnglishRajasthan TGT 2011

Q194.A bag containing balls numbered from 1 to 30. One ball is drown at random from these balls. The probably that its number is a multiple of 5 or 7 is

A1/2 B2/3 C1/3 D1/4

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EnglishKVS TGT DEC 2017

Q195.If A, B, C are three mutually exclusive and exhaustive events of an experiment such that 3P(A) = 2P(B) = P(C), then P(A) is equal to–

A1/11 B2/11 C5/11 D6/11

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EnglishKVS TGT DEC 2017

Q196.Three digit numbers are formed using the digits 0, 2, 4, 6, 8. A number is chosen at random out of these numbers. What is the probability that this number has the same digits?

A1/16 B16/25 C1/645 D1/25

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EnglishKVS TGT DEC 2017

Q197.The probability that atleast one of the events A and B occurs is 0.6. If A and B occur simultaneously with probability 0.2, then P(A) + P(B) is–

A0.4 B0.8 C1.2 D1.6

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EnglishTGT 1999

Q198.The probability of a man hitting a target correctly is 3 4. He tries 5 times, then what will be the probability that he will hit the target correctly at least three times?

A364/219 B464/371 C502/471 D512/459

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EnglishTGT 1999

Q199.If the probability of occurrence of an event is 2 7, then what is the probability that the event does not happen?

A2/1 B5/1 C7/2 D7/5

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EnglishTGT 1999

Q200.What will be the restricted probability of coming up with a number divisible by 3 in a throw of a dice when the restriction is that only an even number comes up.

A1/5 B1/8 C1/3 D1/4

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