CBSE 11TH MATHEMATICS - Online Test
Q1. If the angles of at triangle are in the ratio 1 : 2 : 3, then the sides are in the ratio
Answer : Option B
Explaination / Solution:
Q2. Consider the statement P ( n ) : “ “ . Here for all natural numbers n . Does it mean
Answer : Option B
Explaination / Solution:
Since the statement is not true for n = 1 ,we cannot predict the validity for all natural numbers n.
Q3. The equation 
Answer : Option A
Explaination / Solution:
The equation 
represent X- axis
represent X- axis x= , y= 0 ,z= 0 this is a general point on X axis , So given equation represent X axis
Q4. Find Rank of word ‘wife ‘among the words that can be formed with its letters and arranged as in dictionary is
Answer : Option B
Explaination / Solution:
1.Arrange all the alphabets in alphabetical order ( E, F , I , W )
2. 4 alphabets can form 4! words = 24 words.
Q5. If then
Answer : Option B
Explaination / Solution:
which is purely real [ imaginary part of z=0]
Q6. If the coefficients of (2r +4)th term and ( r -2)th term in the expansion of be equal then find the value of r
Answer : Option D
Explaination / Solution:
Q7. If A , B and C are any three sets , then A – ( B ∪ C ) is equal to
Answer : Option D
Explaination / Solution:
Q9. Solve the system of inequalities x − 2 > 0 , 3x < 18
Answer : Option C
Explaination / Solution:
Q10. The sum of first n terms of the series 1 – 1 + 1 – 1 + … is
Answer : Option C
Explaination / Solution:
