If one ball is drawn at random from a urn containing 25 balls find the probability of drawing a red ...........

Quantitative Aptitude(IBPS CL) Data Sufficiency

Directions: Each question below is followed by two statements I and II. You have to determine whether the data given in the statement is sufficient for answering the question.
You should use the data and your knowledge of Mathematics to choose the best possible answer.

If one ball is drawn at random from a urn containing 25 balls, find the probability of drawing a red ball,

i. The urn contains 10 yellow and 8 green balls.

ii. The urn contains all colored balls

The data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question

The data in Statement II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question.

The data either in Statement I or in Statement II alone are sufficient to answer the question.

The data in both Statements I and II together are necessary to answer the question.

The data even in both Statements I and II together are not sufficient to answer the question.

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Explanation:

The urn contains 10 yellow and 8 green balls
Here we don’t know the number of red balls
So, statement I alone is not sufficient to answer the question
The urn contains all colored balls Here we don’t know the number of red balls
So, statement II alone is not sufficient to answer the question
On combining both the statements we still cannot determine the number of red balls.
So, option (e) is the correct answer.