Sin­ga­pore high school math prob­lem stumps the In­ter­net

The China Post - - GUIDE POST -

A math prob­lem that first ap­peared in a test for Sin­ga­pore’s elite high school stu­dents has baf­fled In­ter­net users around the world af­ter it went vi­ral, prompt­ing a rush of at­tempts to solve it.

The ques­tion, in­volv­ing a girl ask­ing two boys to guess her birth- day af­ter giv­ing them scant clues, first ap­peared in an April 8 test or­ga­nized by the Sin­ga­pore and Asian School Maths Olympiads (SOSMA).

It was meant for 15- and 16-yearold elite sec­ondary school stu­dents, but swiftly went global af­ter a lo­cal tele­vi­sion news pre­sen­ter posted it on his Face­book page Satur­day.

In the ques­tion, Ch­eryl gives her new friends Al­bert and Bernard 10 pos­si­ble dates when they en­quired about her birth­day, be­fore separately giv­ing each of them fur­ther clues.

Test-tak­ers are then asked to use logic to de­duce Ch­eryl’s birth­day us­ing a short con­ver­sa­tion be­tween the two boys about the in­for­ma­tion given to them.

By Mon­day In­ter­net users around the world were post­ing metic­u­lously de­tailed an­swers to the puz­zle on so­cial me­dia net­works such as Face­book and Red­dit, only to prompt a slew of com­ments dis­put­ing their find­ings and method­ol­ogy.

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