Multiple Choice Question: In a 1:2:4 job mix concrete, how many parts is fine aggregates?

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

Three marksmen simultaneously shoot and hit a rapidly spinning spherical target.
A Norman window has the shape of a rectangle surmounted by a semicircle.
The ratio of two numbers is 6:7. If the large number is 42, what number is the smaller one?
A disease is known to affect 1 in 10,000 people. It can be fatal, but it is treatable if it is detected early. A screening test for the disease shows a positive result for 99% of people with the disease. The test shows positive for 2% of people who do
At an ordinary rate a man can row the distance from Pasig to Manila, about 15km, in 5 hours less time than it takes him to return.
Decompose the given term into partial fraction and compute for the value of A: (7x + 17) / (x + 3)^2
The area bounded by the waterline of a reservoir is determined by using planimeter and the following are the results: A1 = 20,000 m2; A2 = 18,000 m2; A3 = 14,000 m2; A4 = 10,000 m2; and A5 = 8,000 m2. If the contour interval is 2 m, find the capacity of
Solve for x from $\sqrt{x - 7} - \sqrt{x} = 1$.
The value of pi to the nearest ten places is…
For a given GP, a1 = 5/21 and r = 1.2. Calculate the product of the first 21 terms.
Which of the following states that the deflection at a point on a system due to a force $P$ is equal to the partial derivative of the total strain energy of the system with respect to that force $P$?
If it were two hours later, it would be half as long until midnight as it would be if it were an hour later. What time is it now?
If two points in the number line have coordinates 1 and 7, find the coordinate of a point on the line which is twice as far from 1 as from 7.
After 4/5 of his mangoes spoiled, Albert bought enough from Bryan so that each then had 1/3 as many as first and Albert had 80 more than Bryan. How many had Albert at first?
What is the coefficient of the term involving $x^{-3}$ in the expansion of $\left( 2x + \dfrac{2}{x} \right)^5?

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