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When the strip of pH paper was put in a given solution the pH paper changes to orange red. The given solution is most likely to be of:

JEE Advanced 2018 | Paper - 1 | Complete Solution

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Blue litmus paper turns on contact with an acidic solution.

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In a hostel 60% of the students read Hindi news paper, 40% read English news paper and 20% read both Hindi and English news papers. A student is selected at random. (a) Find the probability that she reads neither Hindi nor English news papers. (b) If she reads Hindi news paper, find the probability that she reads English news paper. (c) If she reads English news paper, find the probability that she reads Hindi news paper.

In a hostel 60% of the students read Hindi news paper, 40% read English newspaper and 20% read both Hindi and English newspapers. A student is selected at random.Find the probability that she reads neither Hindi nor English news paper ?

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