CBSE 11TH MATHEMATICS - Online Test
Q1. For all odd positive integers n , the number is divisible by :
Answer : Option B
Explaination / Solution:
When n = 1 we have 0 : When n = 2 we have 24. When n = 3 we have 120 .....where all these values are multiples of 24.
Q2. Three of the 6 vertices of a regular hexagon are chosen at random .The probability that the triangle with these vertices is equilateral is
Answer : Option A
Explaination / Solution:
No Explaination.
Q3. The equation 
represents
represents
Answer : Option B
Explaination / Solution:
The equation 
which represent generally XY plane i.e the plane y=0
which represent generally XY plane i.e the plane y=0
Q4. A convex polygon of n sides has n diagonals. Then value of n is
Answer : Option C
Explaination / Solution:
We have an n sided polygon has n vertices.
If you join every distinct pair of vertices you will get lines.
These lines account for the n sides of the polygon as well as for the diagonals.
So the number of diagonals is given by
But given number of sides = number of diagonals =n
Q5. The equation 
Answer : Option D
Explaination / Solution:
Q6.
The sum of coefficients of 1st, 2nd, and 3rd in the expansion of is 46, find n
Answer : Option A
Explaination / Solution:
Q7. Which of the following is a set?
Answer : Option A
Explaination / Solution:
The set is{a,e,i,o,u}
Q8. 
f (x) is
f (x) is
Answer : Option B
Explaination / Solution:
At x=1,
L.H.L.1
R.H.L.2
L.H.L. R.H.L.
Therefore function is not continuous at x=1 which is why it is not derivable at x=1
Q9. The solution set for :
Answer : Option B
Explaination / Solution:
Q10. An A.P. consists of n (odd) terms and its middle term is m. Then the sum of the A.P. is
Answer : Option D
Explaination / Solution:
