Question
A boat will submerge when it displaces water equal to
its own:Solution
A boat will float when the weight of the water it displaces equals the weight of the boat and anything will float if it is shaped to displace its own weight of water before it reaches the point where it will submerge. Floating of the boat works on the principle of buoyancy force which is an upward force exerted by a liquid, gas or other fluid, that opposes the weight of an immersed object. In a column of fluid, pressure increases with depth as a result of the weight of the overlying fluid.
The diagram represents the number of students studying different subjects. What is the number of students who study both Hindi and Chemistry?
In the given figure, how many pencils are black?
How many people belong to W group but not X group?
The following Venn diagram shows the number of students who like to eat three different fruits (Dates, Mango, Cherry)
In the given figure, which letter represents those teacher who teaches both Maths and Physics?
How many persons like all the activities i.e., Painting, Dancing and Music?

Which of the following diagrams best depicts the relationship between Tubelight, Mobile and Gadget.

Find the number of triangles in the following figure:
