Give a head start to your placements

Q1)There are 9 coins. Out of which one is odd one i.e weight is less or more. How many iterations of weighing are required to find odd coin?

Q2)In a sports contest there were m medals awarded on n successive days (n > 1). 1. On the first day 1 medal and 1/7 of the remaining m - 1 medals were awarded. 2. On the second day 2 medals and 1/7 of the now remaining medals was awarded; and so on. 3. On the nth and last day, the remaining n medals were awarded. How many days did the contest last, and how many medals were awarded altogether?

Q3)A number of 9 digits has the following properties: · The number comprising the leftmost two digits is divisible by 2, that comprising the leftmost three digits is divisible by 3, the leftmost four by 4, the leftmost five by 5, and so on for the nine digits of the number i.e. the number formed from the first n digits is divisible by n, 2<=n<=9. · Each digit in the number is different i.e. no digits are repeated. · The digit 0 does not occur in the number i.e. it is comprised only of the digits 1-9 in some order. Find the number

Q4)At 6'o a clock ticks 6 times. The time between first and last ticks is 30 seconds. How long does it tick at 12'o.

Q5)At what time after 4.00 p.m. is the minutes hand of a clock exactly aligned with the hour hand?