1
WB JEE 2021
+1
-0.25
What is the number of ways in which an examiner can assign 10 marks to 4 questions, giving not less than 2 marks to any question?
A
4
B
6
C
10
D
16
2
WB JEE 2020
+1
-0.25
In a 12 storied building, 3 persons enter a lift cabin. It is known that they will leave the lift at different floors. In how many ways can they do so if the lift does not stop at the second floor?
A
36
B
120
C
240
D
720
3
WB JEE 2020
+1
-0.25
If the total number of m-element subsets of the set A = {a1, a2, ..., an} is k times the number of m element subsets containing a4, then n is
A
(m $$-$$ 1)k
B
mk
C
(m + 1)k
D
(m + 2)k
4
WB JEE 2019
+1
-0.25
A candidate is required to answer 6 out of 12 questions which are divided into two parts A and B, each containing 6 questions and he/she is not permitted to attempt more than 4 questions from any part. In how many different ways can he/she make up his/her choice of 6 questions?
A
850
B
800
C
750
D
700
WB JEE Subjects
Physics
Mechanics
Electricity
Optics
Modern Physics
Chemistry
Physical Chemistry
Inorganic Chemistry
Organic Chemistry
Mathematics
Algebra
Trigonometry
Coordinate Geometry
Calculus
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