Question
A took a loan of Rs.5740 at simple interest of 20% p.a.
and invested the same money in a scheme at simple interest of 30% p.a. Find the profit earned by A at the end of 2 years.Solution
Interest paid by A = (5740 times; 2 times; 20)/100 = Rs.2296 Interest received by A from the scheme = (5740 times; 2 times; 30)/100 = Rs.3444 Profit = 3444 ndash; 2296 = Rs.1148
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...
From a point 20 m away from the foot of a pole, the angle of elevation of the top of the pole is 60 degrees. Find the height of the pole.
A man whose height is 1.5 metres is standing 24√3 metres away from a light pole. The angle of elevation from his head to the top of the light pole...
From a watch tower of 205 m height, the angles of depression of two cliffs in a horizontal line through the base of the tower are 45° and 30°. Find th...
A pole 9√3 m high casts a shadow 27 m long on the ground. Find the angle of elevation
The angle of elevation of an aeroplane from a point on the ground is 60°. After 15 seconds flight the elevation changes to 30°, if the aeroplane is fl...
A tree stands tall with a height of 54 meters. From a point 'x' meters away from its base, the angle of elevation to the top of the tree is 60°. Determ...
From the top of a straight pillar 20 meters high, the angle of elevation of the top of a straight tower was 45°. If the tower was 70 meters high, then ...
Two ships are on opposite sides in front of a lighthouse in such a way that all three of them are in line. The angles of depression of two ships from th...
The angle of elevation of an aeroplane from a point on the ground is 60°. After 20 seconds flight the elevation changes to 30°, if the aeroplane...