In a survey concerning the smoking habits of consumer it was found that 55% smoke cigarette A, 50% smoke cigarette B, 40% smoke cigarette C, 30% smoke cigarettes A and B, 20% smoke cigarettes A and C, 12% smoke cigarettes B and C only 10% all three cigare

In a survey concerning the smoking habits of consumer it was found that 55% smoke cigarette A, 50% smoke cigarette B, 40% smoke cigarette C, 30% smoke cigarettes A and B, 20% smoke cigarettes A and C, 12% smoke cigarettes B and C only 10% all three cigarettes. What percentage of the population did not smoke?

More Old MCQ

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

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.
Which of the following assets are depreciable?
A highway has a gradient of 0.087. How many meters would an automobile rise vertically if it traveled 2 miles along the way?
Given $f(x) = (x - 4)(x + 3) + 4$. When $f(x)$ is divided by $(x - k)$, the remainder is k, find the value of k.
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Find the capacity of a conical vessel that is made from a semi-circular tin of radius 2.5 m.
To encourage Elmer’s promising tennis career, his father offers him a prize if he wins (at least) two tennis sets in a row in a three-set series to be played with his father and the club champion alternately:
Xoc9dHk-3 If the bucket is leaking at a uniform rate so that it is half-full when no chain is out, how much work is done in winding-up the 30-m length?
From the given right triangle what is the value of $3 \sin^2 \varphi \, \sec \varphi$ in terms of $x$.
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X7MyoLt-2 There is 1 flaw in 3-meter length.
Given the following equations: $ab = 1/8$, $ac = 3$, $bc = 6$. Find the value of $b$.

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