If $x^y$ + $y^x$ = 99. Which of the following can be the value of $x$?
Correct!
Wrong!

5 men can do a piece of work in 12 days working 9 hours regularly. How many men are required to complete half the work in 9 days working 5 hours regularly?
Correct!
Wrong!

Summer vacation for a particular college was for 57 days. If 3/4th of the time passed is equal to 4/5th of the time to come. How many more days are left for the vacation to end?
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