Question
The median of following data is 32. Find the value of x and y if x + y = 100
The median of following data is 32. Find the value of x and y if x + y = 100. Class Interval…
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Question
The age of 100 persons present in a workshop is given in the following table. Find the average age of 100 people (by any method)
The age of 100 persons present in a workshop is given in the following table. Find the average age of 100 people…
Question
Melting a solid Lead sphere of diameter 12 cm, three small solid spheres are made. If the ratio of the diameter of the small spheres is 3 : 4 : 5 then find the radius of each small sphere.
Melting a solid Lead sphere of diameter 12 cm, three small solid spheres are made. If the ratio of the diameter of…
Question
The height of a right circular cylinder is twice the radius of the base. If the height is 6 times of the radius, then the volume of the cylinder is 539 cubic decimeter more than the previous volume. Find the height of the cylinder.
The height of a right circular cylinder is twice the radius of the base. If the height is 6 times of the…
Question
Curved surface area of a right circular cone is 154√2 sq cm and radius of the base 7 cm. Find its vertical angle.
Curved surface area of a right circular cone is 154√2 sq cm and radius of the base 7 cm. Find its vertical…
Question
Distance between two pillars is 150 m, height of one pillar is three times the other pillar. From the mid-point of the line joining their foot the angles of elevation of the top of the two pillars are complementary. Find the height of the smaller pillar.
Distance between two pillars is 150 m, height of one pillar is three times the other pillar. From the mid-point of the…
Question
From the middle of a ground Habu observes a flying bird toward north at an angle of elevation 30°, after 2 minutes he observes the same bird at an angle of elevation 60° toward south. If the bird always flies in a straight line at height 50√3 meters from the ground level, find its velocity.
From the middle of a ground Habu observes a flying bird toward north at an angle of elevation 30°, after 2 minutes…
Question
Two unequal arcs of ratio 5 : 2 of a circle subtend angle at the centre. If the second angle is 30°, find the first angle in circular measure.
Two unequal arcs of ratio 5 : 2 of a circle subtend angle at the centre. If the second angle is 30°,…
Question
If tan θ = 5/7, find the value of (5 sin θ + 7 cos θ)/(7 sin θ + 5 cos θ)
If tan θ = , find the value of
Question
If sin x = m sin y and tan x = n tan y, then show that cos² x = (m² – 1)/(n² – 1)
If sin x = m sin y and tan x = n tan y, then show that cos² x =