SSC Government Jobs Exams Numerical Ability Geometry

What is the major axis and its length for the following ellipse?
(1/9) x^2 + (9/25) y^2 = 1/25

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SSC Other Question

Simple interest on a certain sum of money for 3 years at 8% per annum is half the compound interest on Rs. 4000 for 2 years at 10% per annum. The sum placed on simple interest is

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Rs 1850
Rs 1950
A man takes twice as long to row a distance against the stream as to row the same distance in favour of the stream. The ratio of the speed of the boat in still water and stream is

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