1
IIT-JEE 2005 Screening
MCQ (Single Correct Answer)
+2
-0.5
If the LCM of p, q is $${r^2}\,{r^4}\,{s^2}$$, where r, s, t are prime numbers and p, q are the positive integers then number of ordered pair (p, q) is
A
252
B
254
C
225
D
224
2
IIT-JEE 2002 Screening
MCQ (Single Correct Answer)
+2
-0.5
The number of arrangements of the letters of the word BANANA in which the two N's do not appear adjacently is
A
40
B
60
C
80
D
100
3
IIT-JEE 2001 Screening
MCQ (Single Correct Answer)
+2
-0.5
Let $${T_n}$$ denote the number of triangles which can be formed using the vertices of a regular polygon of n sides. If $${T_{n + 1}} - {T_n} = 21$$, then n equals
A
5
B
7
C
6
D
4
4
IIT-JEE 2000 Screening
MCQ (Single Correct Answer)
+2
-0.5
How many different nine digit numbers can be formed from the number 223355888 by rearranging its digits so that the odd digits occupy even positions?
A
16
B
36
C
60
D
180
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