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From an external point P of a circle with centre O, two tangents PS and PT are drawn. QS is a chord…
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Perimeters of two similar triangles are 27 cm and 16 cm. If the length of a side of the first triangle is…
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If x ∝ √y and y = a², when x = 2a then find x² : y
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If x\over2 = y\over3 = z\over4 then find the value of (3x + 4y + 8z) / (x + 3y).
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The Capital of A and B in a business are in a ratio 3 : 2. After donating 5% of the profit…
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If the annual rate of simple interest decreases from 5.5% to 4.5%, then the total interest is decreased by ₹ 250. Find…
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If x be the volume, y be the area of the base and z be the height of a cone then the…
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ABCD is a cyclic quadrilateral. If ∠ADB = x° and ∠ABD = y° then ∠BCD is (x + y)°.
