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5 × 3 – 1 = 14 14 × 3 – 1 = 41 41 × 3 – 1 = 122 122 × 3 – 1 = 365 365 × 3 – 1 = 1094 1094 × 3 – 1 = 3281
The angle of elevation of a tower from a certain point of bus stand is 30°. When a man walks 5m ahead in the direction of the tower, the angle of el...
The ratio of the radii of the bases of a cylinder and a cone is 2:3, while the ratio of their heights is 3:5. What is the ratio of the volume of the cyl...
The diagonals of a rhombus are in the ratio 7:5, and its area is 3,500 cm². A circle is formed taking the smaller diagonal as the diameter. Find the di...