Khulna Higher Secondary 2017#1

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samiul_samin
Posts:1007
Joined:Sat Dec 09, 2017 1:32 pm
Khulna Higher Secondary 2017#1

Unread post by samiul_samin » Sat Feb 24, 2018 1:36 am

Bindu and Shad ate commander, who like to arrange their troop in such a way that the number of troops in row and column remain same.Bindu has $4$ troops per row in his army and Shad has $5$ troops per column in his army.How much additiona troops they need if they want to arrange their army together?

samiul_samin
Posts:1007
Joined:Sat Dec 09, 2017 1:32 pm

Re: Khulna Higher Secondary 2017#1

Unread post by samiul_samin » Sat Feb 24, 2018 1:36 am

Hint
Use square number
Answer
$8$

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