exam Maths Puzzle Numerical Ability

An airline reports that it has been experiencing 15% rate of no-shows on advanced reservations. Among 150 advanced reservations, find the probability that there will be fewer than

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|4-5||m|=|32|
|1 2||n|=|-5|

Solve this matrix equation. trains a and b are traveling on the same direction on parallel tracks. train a is traveling at 60 miles per hour and train b is traveling at 64 miles per hour. train a passes a sta