1
WB JEE 2020
MCQ (Single Correct Answer)
+1
-0.25
Change Language
If c0, c1, c2, ......, c15 are the binomial coefficients in the expansion

of (1 + x)15, then the value of $${{{c_1}} \over {{c_0}}} + 2{{{c_2}} \over {{c_1}}} + 3{{{c_3}} \over {{c_2}}} + ... + 15{{{c_{15}}} \over {{c_{14}}}}$$ is
A
1240
B
120
C
124
D
140
2
WB JEE 2019
MCQ (Single Correct Answer)
+1
-0.25
Change Language
The number of irrational terms in the expansion of $${\left( {{3^{{1 \over 8}}} + {5^{{1 \over 4}}}} \right)^{84}}$$ is
A
73
B
74
C
75
D
76
3
WB JEE 2018
MCQ (Single Correct Answer)
+1
-0.25
Change Language
The number (101)100 $$-$$ 1 is divisible by
A
104
B
106
C
108
D
1012
4
WB JEE 2018
MCQ (Single Correct Answer)
+1
-0.25
Change Language
If n is even positive integer, then the condition that the greatest term in the expansion of (1 + x)n may also have the greatest coefficient, is
A
$${n \over {n + 2}} < x < {{n + 2} \over n}$$
B
$${n \over {n + 1}} < x < {{n + 1} \over n}$$
C
$${{n + 1} \over {n + 2}} < x < {{n + 2} \over {n + 1}}$$
D
$${{n + 2} \over {n + 3}} < x < {{n + 3} \over {n + 2}}$$
WB JEE Subjects
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12