Multiple Choice Question: This law states that the strength of a concrete is inversely proportional to its water-to-cement ratio.

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

Solve for x if $e^{\ln (2x - 1)} = 5$.
A truth serum given to a suspect is known to be 90% reliable when the person is guilty and 99% reliable when the person is innocent.
At 6:00 A.M., a fighter plane took off at 410 kph from an aircraft carrier, maintaining the direction of N 50° E.
Find the non-zero solution to the equation $3x^4 - 27x^3 = 0$.
The total surface area of a regular tetrahedron is 339.482 cm2. Find the measure of the edge of this tetrahedron.
The number of revolution per minute of a ball governor required to keep the balls h inches below the point of suspension varies inversely as the square root of h.
The sum of the interior angles of a polygon of n sides is four times the sum of its exterior angles. Find the value of n.
If x + y = 5 and xy = 6, find the value of x^3 + y^3.
When an irregular shaped object is placed in a cylindrical vessel of water whose radius is 8 cm, the water rises 6 cm. What is the volume of the rock if it is completely submerged?
Find the area of the largest rectangle that can be inscribed in a right triangle with legs of length 3 cm and 4 cm if two sides of the rectangle lie along the legs.
This law states that the strength of a concrete is inversely proportional to its water-to-cement ratio.
In how many ways can 4 couples be seated at a round table with the men and women alternating?
Find the probability that a person tossing three coins will get either all heads or all tails for the second time on the fifth toss.
It is the term used in the case of pipe flowing under pressure, it is the circumference of the circular section, while in the case of a rectangular open channel flow, it is the sum of the base and the two sides.
It is defined as a hydrograph with a volume of 1 inch of runoff resulting from a rainstorm of specified duration and a real pattern.