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 By: tangara (offline)  Thursday, July 07 2011 @ 10:30 PM CDT (Read 1289 times)
tangara

Hi,

Just realised that I posted at the wrong level...no wonder nobody answers.....

I am stumbled by this Maths question below:-

Simeon and Alvin had 116 marbles at first.
After Simeon bought another 8 marbles and Alvin gave away 20 of his marbles to his sister,
they both had the same number of marbles left. How many marbles did Alvin have at first?

I hope someone can explain how to get the answer.

Junior

Registered: 07/31/10
Posts: 26

 By: awyw1201 (offline)  Friday, July 08 2011 @ 09:15 PM CDT
awyw1201

Simeon and Alvin had 116 marbles at first.
After Simeon bought another 8 marbles and Alvin gave away 20 of his marbles to his sister,
they both had the same number of marbles left. How many marbles did Alvin have at first?

Solution:

Total now -- 116+8-20= 104
Each now -- 104/2= 52
Alvin at first -- 52+20 =72

Ans: 72 marbles

Regular Member

Registered: 07/08/11
Posts: 87

 By: tangara (offline)  Sunday, July 10 2011 @ 04:39 AM CDT
tangara

I am able to do now.

Junior

Registered: 07/31/10
Posts: 26

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