Loading....
Coupon Accepted Successfully!

Previous Year Paper

Open Flashcards

CAT-2003-Previous Years Paper

Question
48 out of 50
 

A string of three English letters is formed as per the following rules:

I. The first letter is any vowel.

II. The second letter is m, n or p.

III. If the second letter is m, then the third letter is any vowel which is different from the first letter.

IV. If the second letter is n, then the third letter is e 
or u.

V. If the second letter is p, then the third letter is the same as the first letter.


How many strings of letters can possibly be formed using the above rules such that the third letter of the string is e?



A 8
B 9
C 10
D 11

Ans. C

As the third letter is e that can be selected in only one way

Case I: 4 m e = 4 ways

Case II: 5 n e = 5 ways

Case III: e p e = 1 ways

= 10 ways

CAT-2003-Previous Years Paper Flashcard List

50 flashcards
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)
31)
32)
33)
34)
35)
36)
37)
38)
39)
40)
41)
42)
43)
44)
45)
46)
47)
48)
49)
50)