MBA Exam

The unit’s digit in 1^5 + 3^5 + 5^5 + 7^5 +..... ... + 99^5 is

1) 0
2) 5
3) 3
4) 9

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MBA Other Question
class consists of 15 students and a teacher. The teacher writes a natural number on the board and asks students to tell something about the number. The first student says, “This number is a multiple of 1”. The second student says, “This number is a multiple of 2” and so on till the 15th student. The teacher notices that all but two of them were correct in their statements and both of them spoke one after the other consecutively. Which two students were not correct?

1) 8 & 9
2) 13 & 14
3) 9 & 10
4) 11 & 12
 When I left home for office on a particular day my father’s watch showed 7:00 PM, and when I reached my office my watch showed 7:50 PM. Next day in the morning when my father’s watch showed 6:00 AM, my watch showed 7:30 AM. If my father’s watch runs at normal speed and my watch gains 5 minutes per hour, then the time taken by me to reach my office from home, on that day, was closest to

1) 15 minutes
2) 13 minutes 38 seconds
3) 13 minutes 50 seconds
4) 14 minutes 50 seconds