Posted by **jezzaD.** on Sunday, December 16, 2012 at 5:45am.

A mathematics teacher bought a birthday cake for his son with the dedication

Happy Birthday!!!

(2 raise to 5/2 .(the dot means times) 2 raise to 3/4 divided by 2 raise to 1/4)th

How old is his son?

kindly help me...

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