SSC Government Jobs Exams Numerical Ability Geometry

Let ABC be a right-angled triangle, where angle A = 90 and AD is perpendicular to BC, accordingly area of ABC = 40 cm ² & ACD = 10 cm ² in area and AC = 9 cm What is the length of BC?

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SSC Other Question

A shopkeeper expects a gain of 22.5% on his cost price. If in a week, his sale was of Rs. 392, what was his profit ? The lengths of three medians of a triangle are 9 cm, 12 cm and 15 cm. The area (in sq.cm) of the triangle is
a)24 b)72 c)48 d)144.