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#1 2010-03-07 16:06:08
- soha
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tom is...
Tom is 12 years old, thrice his bro.. What is his age if he is twice his bro???
"Let us realize that: the privilege to work is a gift, the power to work is a blessing, the love of work is success!" 
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#2 2010-03-07 19:39:15
- Identity
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- Registered: 2007-04-18
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Re: tom is...
At the start, his bro is 4.
Let x be the number of years until Tom is twice his bro
12+x = 2(4+x)
Which can be solved to find the solution
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#3 2010-03-20 16:53:05
- soha
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Re: tom is...
when we solve , we get the answer as 4 ..??????
How can that be??
"Let us realize that: the privilege to work is a gift, the power to work is a blessing, the love of work is success!"
- David O. McKay
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#4 2010-03-20 17:51:02
- ZHero
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Re: tom is...
4 yrs ago----> Tom was 12 and his bro was 4
NOW --------> Tom is 12+4=16 and his bro is 4+4=8 !
If two or more thoughts intersect, there has to be a point!
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#5 2010-03-20 17:58:33
- bobbym
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Re: tom is...
Hi soha;
Tom is 3 times his brothers age.
B is the brothers age;
T is Toms age:
3B = T We know Tom's age is 12 so sub for T.
3B = 12 Solve for B.
B is 4
So when Tom is twice as old as B he is 2 * 4 = 8.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#6 2010-03-21 02:38:27
- soha
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- Registered: 2006-07-07
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Re: tom is...
Understood..
Thanks to everyone who helped...
"Let us realize that: the privilege to work is a gift, the power to work is a blessing, the love of work is success!"
- David O. McKay
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