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problem

Four students agreed to pool their savings to purchase a computer. The portions contributed are represented proportionately by the areas in the diagram below. What percent of the total did QQ contribute? [asy]size(100); draw((0,2)--(48,2),black); draw((48,2)--(48,50),black); draw((48,50)--(0,50),black); draw((0,50)--(0,2),black); draw((24,26)--(0,2),black); draw((24,26)--(24,2),black); draw((24,26)--(48,26),black); draw((24,26)--(0,50),black); draw((12,0)--(12,4),black); draw((36,0)--(36,4),black); draw((46,14)--(50,14),black); draw((46,38)--(50,38),black); draw((36,24)--(36,28),black); label("P",(36,35),N); label("Q",(11,22),N); label("R",(16,7),N); label("S",(36,11),N); [/asy]
Plain-text mathematical notation (without MathML)
Four students agreed to pool their savings to purchase a computer. The portions contributed are represented proportionately by the areas in the diagram below. What percent of the total did Q contribute?

[asy]size(100);
draw((0,2)--(48,2),black);
draw((48,2)--(48,50),black);
draw((48,50)--(0,50),black);
draw((0,50)--(0,2),black);
draw((24,26)--(0,2),black);
draw((24,26)--(24,2),black);
draw((24,26)--(48,26),black);
draw((24,26)--(0,50),black);
draw((12,0)--(12,4),black);
draw((36,0)--(36,4),black);
draw((46,14)--(50,14),black);
draw((46,38)--(50,38),black);
draw((36,24)--(36,28),black);
label("P",(36,35),N);
label("Q",(11,22),N);
label("R",(16,7),N);
label("S",(36,11),N);
[/asy]
Original LaTeX notation
Four students agreed to pool their savings to purchase a computer. The portions contributed are represented proportionately by the areas in the diagram below. What percent of the total did $Q$ contribute?

[asy]size(100);
draw((0,2)--(48,2),black);
draw((48,2)--(48,50),black);
draw((48,50)--(0,50),black);
draw((0,50)--(0,2),black);
draw((24,26)--(0,2),black);
draw((24,26)--(24,2),black);
draw((24,26)--(48,26),black);
draw((24,26)--(0,50),black);
draw((12,0)--(12,4),black);
draw((36,0)--(36,4),black);
draw((46,14)--(50,14),black);
draw((46,38)--(50,38),black);
draw((36,24)--(36,28),black);
label("P",(36,35),N);
label("Q",(11,22),N);
label("R",(16,7),N);
label("S",(36,11),N);
[/asy]

level

Level 2

type

Prealgebra

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Official source

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