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Let the sum invested be A; Simple interest in three years: 3 × 25/100 × A => 3A/4 Compound interest in three years: A(1+25/100)3 – A => 61A/64 Difference between compound interest and simple interest= 13A/64 = 650 => A =3200.
In a race A beats B by 120m. B beats C by 260m and A beats C by 300m what is the length of race?
The slope of the equation 24x+8y=56 is
If P(A) = 0.7, P(B) = 0.5 and P (B/A) = 0.3, find (i) P(A/B) (ii) P(A ∪ B)?
Find the equation of the line passing through the points (1, 2) and (3, 8).
Solve: ∫[2x/(x4+1)] dx
Find the co-ordinate of the centroid of a triangle whose vertices are (1,3), (2,1) and (2,5)?
Find the equation of the circle passing through the points (1, 2) and (2, -1), and whose center lies on the line x - 2y + 3 = 0.