Previous Year Paper
CAT2005Previous Years Paper
Let S be a set of positive integers such that every element n of S satisfies the conditions:
I. 1000 ≤ n < 1200
II. Every digit in n is odd
Then how many elements of S are divisible by 3?
A  9 
B  10 
C  11 
D  12

The 100th and 1000th position value will be only 1.
Now the possibility of unit and tens digits are (1, 3), (1, 9), (3, 1), (5, 5), (7, 3), (7, 9), (9, 1), (9, 7).
CAT2005Previous Years Paper Flashcard List
1) 
2) 
3) 
4) 
5) 
6) 
7) 
8) 
9) 
10) 
11) 
12) 
13) 
14) 
15) 
16) 
17) 
18) 
19) 
20) 
21) 
22) 
23) 
24) 
25) 
26) 
27) 
28) 
29) 
30) 