MBA Exam General Ability General Knowledge

An intelligence agency decides on a code of 2 digits selected from 0,1,2....,9. But the slip on which the code is hand written allows confusion between top and bottom, because these are indistinguishable. Thus, for eg., the code 91 could be confused with 16. How many codes are there such that there is no possibility of any confusion?

1) 25
2) 75
3) 80
4) None of these

Read Solution (Total 9)

MBA Other Question

What is the number of distinct terms in the expansion of (a + b + c)20?(1) 231 (2) 253 (3) 242 (4) 210 (5) 228[CAT2008]

1) 1
2) 2
3) 3
4) 4
5) 5
121 is a palindrome. Find the number of palindromes between 1,000,000 and 9,999,999 which when divided by 4 leave 1 as the remainder.

1) 62500
2) 2500
3) 2250
4) none