Daily Math Challenge

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Problem 1336

Posted: April 22, 2025

88 % of users got this correct

If you place a decimal point between b and c in the 4-digit number N = abcd, you get the average (arithmetic mean) of the 2-digit numbers ab and cd. What is the sum of the digits of N?

Problem submitted by Khalil Dagher, Beirut, Lebanon

 

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