# Probability

Subject matter experts of JagranJosh have developed a chapter wise practice sets as per the relevancy of the chapter in the board exam. This practice set contains 10 questions with detailed explanations on “Chapter: Probability” of Mathematics.

• Q1.A dice is thrown. Find the probability of getting an even number.

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• Q2.Two coins are thrown at the same time. Find the probability of getting both heads.

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• Q3.Two dice are thrown simultaneously. The probability of getting a sum of 9 is:

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• Q4.100 cards are numbered from 1 to 100. Find the probability of getting a prime number.

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• Q5.A bag contains 5 red balls and some blue balls .If the probability of drawing a blue ball is double that of a red ball, Then the number of blue balls in a bag is:

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• Q6.A box of 600 bulbs contains 12 defective bulbs. One bulb is taken out at random from this box. Then the probability that it is non defective bulb is:

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• Q7.Cards marked with numbers 2 to 101 are placed in a box and mixed thoroughly. One card is drawn from this box randomly, then the probability that the number on card is a perfect square.

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