Syntel Company Numerical Ability Averages

Average age of X number of adults in a class is 30yrs. If 12 new adults with avg age of 32 joined with them then the average age increases by one. Find X?

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Syntel Other Question

In a village there are 2000 people. In 2005 the population increased 10%, 12% in 2006, 14% in 2007. What is the
population at the begining of 2008?
find the average of reciprocals of x and y :