Multiple Choice Question: It is a differential equation or a set of differential equations that mimic the behavior of real-life objects and situations.

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Orphaned Multiple Choice Questions (MCQ) due to changes of exam system.

N0f8gkh-3 Allan and Brando start at the same time.
The probability that a visitor at the mall buys a pack of candy is 30%. If three visitors come to the mall today, what is the probability that exactly two will buy a pack of candy?
Three marksmen simultaneously shoot and hit a rapidly spinning spherical target.
Water is flowing into a conical cistern at the rate of 5 m^3/min. The height of the cone is 10 m and the radius of the upper base 5 m.
Maria is 36 years old. Maria was twice as old as Anna was when Maria was as old as Anna is now. How old is Ana now?
A strip of 640 m2 is sold from a triangular field whose sides are 96 m, 72 m, and 80 m. The strip is of uniform width h and has one of its sides parallel to the longest side of the field. Find the width of the strip.
Solve for x if $e^{\ln (1 - x)} = 2x$.
In the CE Board examinations, the probability that an examinee will pass in each subject is 0.80. What is the probability that the examinee will pass at least two subject?
jPxd93H-3 Find the magnitude of the cross-product $\mathbf{A} \times \mathbf{B}$
Xoc9dHk-1 How much work is done in winding-up the upper half of the chain?
Suppose a population is normally distributed with a mean of 24.6 and a standard deviation of 1.3. What percentage of data will lie between 25.3 and 26.8?
Find x if the point (x, 2) is equidistant from (3, 2) and (7, 2).
Find the product of roots of $\dfrac{x^{2002} + 4x^{2001}}{4x^{2000}} = 8$.
Find the first derivative of y with respect to x of the following function, when x = 2.$$ y = \dfrac{\ln x^2}{\sin 2x} $$
Find the angle subtended by the line segment through (0, 0, 0) and (3, 8, 5) from the xy-plane.