Maths - Online Test
Q1. The height and radius of
the cone of which the frustum is a part are h1 units and r1
units respectively. Height of the frustum is h2 units and
radius of the smaller base is r2 units. If h2
: h1 = 1 : 2 then r2
: r1 is
Answer : Option B
Explaination / Solution:
Q2. If a letter is chosen at
random from the English alphabets {a,b,...,z}, then the probability that
the letter chosen precedes x
Answer : Option C
Explaination / Solution:
Q3. f (x) = (x + 1)3 − (x −
1)3 represents a function which is
Answer : Option D
Explaination / Solution:
Q4. The value of (13
+ 2 3 + 3 3 + + 15 3 ) − (1 + 2 + 3
+ + 15) is
Answer : Option C
Explaination / Solution:
Q5. If A is a 2 ×3
matrix and B is a 3 ×4 matrix, how many columns does AB have
Answer : Option B
Explaination / Solution:
Q6. 
In figure if PR is
tangent to the circle at P and O is the centre of the circle,
then ∠POQ is
Answer : Option A
Explaination / Solution:
Q7. (2, 1) is the point of intersection of two lines.
Answer : Option B
Explaination / Solution:
Q8. The angle of elevation of a cloud from a point h metres above a lake is β. The angle of depression of its reflection in the lake is 45° . The height of location of the cloud from the lake is
Answer : Option A
Explaination / Solution:
Q9. The ratio of the volumes of a cylinder, a cone and a sphere, if each has the same diameter and same height is
Answer : Option D
Explaination / Solution:
Q10. A purse contains 10 notes of ₹2000, 15 notes of ₹500, and 25 notes of ₹200. One note is drawn at random. What is the probability that the note is either a ₹500 note or ₹200 note?
Answer : Option D
Explaination / Solution:
