BdMO National Junior 2009/1
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samiul_samin
- Posts:1007
- Joined:Sat Dec 09, 2017 1:32 pm
Some students are visiting a stable.At a certain time,it was counted that there are $71$ heads and $228$ legs were there.How many students were there at the time of counting?
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samiul_samin
- Posts:1007
- Joined:Sat Dec 09, 2017 1:32 pm
Re: BdMO National Junior 2009/1
Suppose there are only $1$ student,then we will get $282$ legs.
That means extra $(282-228)=54$ legs.To equalize according the question we need to add $27$ students so,there were $28$ students at the time of counting.
That means extra $(282-228)=54$ legs.To equalize according the question we need to add $27$ students so,there were $28$ students at the time of counting.