Question Library
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In the figure given above, ∠PQR = 90° and QL is a median, PQ = 5 cm and QR =…
CDS Elementary Mathematics 2013
CDS 2013
Mathematics
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In the figure given above, ABCD is a trapezium. EF is parallel to AD and BC. Angle y is equal…
CDS Elementary Mathematics 2013
CDS 2013
Mathematics
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Consider a circle with centre at O and radius r. Points A and B lie on its circumference and a…
CDS Elementary Mathematics 2013
CDS 2013
Mathematics
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In a triangle ABC, ∠BCA = 90° and CD is perpendicular to AB. If AD = 4 cm and BD…
CDS Elementary Mathematics 2013
CDS 2013
Mathematics
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The bisectors BI and CI of the angles B and C of a triangle ABC meet in I. What is…
CDS Elementary Mathematics 2013
CDS 2013
Mathematics
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ABC is a triangle where BC = 2AB, ∠C = 30° and ∠A = 90°. The magnitude of the side…
CDS Elementary Mathematics 2013
CDS 2013
Mathematics
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Let ABC be an equilateral triangle. If the side BC is produced to the point D so that BC =…
CDS Elementary Mathematics 2013
CDS 2013
Mathematics
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ABC is a right-angled triangle such that AB = a, BC = a and CA = a + b. D…
CDS Elementary Mathematics 2013
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Mathematics
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In the figure given above, the area of rectangle ABCD is 100 square cm, O is any point on AB…
CDS Elementary Mathematics 2013
CDS 2013
Mathematics
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In the figure given above, PQRS is a parallelogram. If AP, AQ, CR, CS are bisectors of ∠P, ∠Q, ∠R…
CDS Elementary Mathematics 2013
CDS 2013
Mathematics
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ABCD is a trapezium with parallel sides AB = 2 cm and DC = 3 cm. E and F are…
CDS Elementary Mathematics 2013
CDS 2013
Mathematics
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Pipe A can fill a tank in 10 minutes and pipe B can empty it in 15 minutes. If both…
CDS Elementary Mathematics 2013
CDS 2013
Mathematics
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There are 45 male and 15 female employees in an office. If the mean salary of the 60 employees is…
CDS Elementary Mathematics 2013
CDS 2013
Mathematics
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The side BC of a triangle ABC is produced to D; bisectors of the angle ABC and ACD meet at…
CDS Elementary Mathematics 2013
CDS 2013
Mathematics
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If the arms of one angle are respectively parallel to the arms of another angle, then the two angles are
CDS Elementary Mathematics 2013
CDS 2013
Mathematics
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If the area of a regular hexagon is 96√3 square cm, then its perimeter is
CDS Elementary Mathematics 2013
CDS 2013
Mathematics
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A swimming pool 70 m long, 44 m wide and 3 m deep is filled by water flowing from a…
CDS Elementary Mathematics 2013
CDS 2013
Mathematics
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The minute hand of a watch is 2·5 cm long. The distance its extreme end traverses in 40 minutes is
CDS Elementary Mathematics 2013
CDS 2013
Mathematics
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What is the quantity of cloth required to roll up to form a right circular tent whose base is of…
CDS Elementary Mathematics 2013
CDS 2013
Mathematics
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Each side of an equilateral triangle is 6 cm. Its altitude is
CDS Elementary Mathematics 2013
CDS 2013