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Let r = red marbles, b = blue marbles. Statement I: r = 0.4(r+b) Solve: 0.6r = 0.4b = r/b = 2/3 Ratio found. Sufficient. Statement II: b = r+30 No fixed ratio (depends on value of r). = Not sufficient. Therefore, Only Statement I is sufficient. Hence, Statement I alone is sufficient, Statement II alone is not.
The circumference of a circle is 44 cm. What is its radius? (Use π = 22/7)
Find the area of largest square that can be inscribed in a circle of radius ‘r’.
In the given diagram, point 'O' represents the center of a circle, while AB and DE are two distinct chords within the circle. The line segment OC is per...
Find the area of the sector of a circle with radius 14 cm and central angle 90°.
A circle touches all four sides of a quadrilateral. If AB = 18 cm, BC = 21 cm, and AD = 15 cm, then what is the length of CD?
A sector of a circle has a central angle of 120° and a radius of 10 cm. Find the area of the sector.