Number System
What is a two-digit number if the ratio of the digit at ten's place to the digit at unit's place is 4 : 3 ? (I) The sum of the digits of a two-digit number is 14. (II) The digit at unit place is 75% o

If the data in statement (I) alone is sufficient to answer the question while that in statement (II) alone is not sufficient.
If the data in statement (II) alone is sufficient to answer the question, while that in statement (I) alone is not sufficient.
If the data even in both statements (I) and (II) together is not sufficient to answer the question.
If the data either in statement (I) alone or in statement (II) alone is sufficient to answer the question.

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Number System
A basket contains eight white and ten black balls. Two draws of one ball each are made without replacement. What is the probability that one ball is white and the other ball is black ?

80/153
80/150
80/151
80/152

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