Q1.Archimedes s said, “Give me a lever long enough and a fulcrum on which to place it, and
I will move the world”
The sentence above is an example of a ___________statement.
Answer : Option AExplaination / Solution: No Explaination.
Q2.A cube is built using 64 cubic blocks of side one unit. After it is built, one cubic block
is removed from every corner of the cube. The resulting surface area of the body (in
square units) after the removal is ___________.
Answer : Option DExplaination / Solution:
Four blocks are needed for each direction(totally 3 directions) to build a bigger cube
containing 64 blocks. So area of one side of the bigger cube= 4 × 4 =16units
There are 6 faces so total area= 6 × 16 = 96units
When cubes at the corners are removed they introduce new surfaces equal to exposes
surfaces so the area of the bigger cube does not change from 96
Q3.A shaving set company sells 4 different types of razors, Elegance, Smooth, Soft and
Executive. Elegance sells at Rs. 48, Smooth at Rs. 63, Soft at Rs. 78 and Executive at Rs. 173 per piece. The table below shows the numbers of each razor sold in each quarter of a
year.
Which product contributes the greatest fraction to the revenue of the company
in that year?
Answer : Option BExplaination / Solution: No Explaination.
Q5.In a process, the number of cycles to failure decreases exponentially with an increase
in load. At a load of 80 units, it takes 100 cycles for failure. When the load is halved, it
takes 10000 cycles for failure. The load for which the failure will happen in 5000
cycles is __________.
Answer : Option BExplaination / Solution:
From the data given we assume
Answer : Option CExplaination / Solution:
Comparing the given equation with the general form of second order partial differential
equation, we have A=1, B=3, C=1