Probability

Question

Jason has twice as many red marbles as blue marbles. He puts them in two jars in such a way that the ratio of the number of red marbles to blue marbles in jar I is 2:7 and there are only red marbles in jar II. The number of red marbles in jar II is how many times the number of red marbles in jar I?

harsh.champ · Answer

tsmith93 wrote:Jason has twice as many red marbles as blue marbles. He puts them in two jars in such a way that the ratio of the number of red marbles to blue marbles in jar I is 2:7 and there are only red marbles in jar II. The number of red marbles in jar II is how many times the number of red marbles in jar I?

R=2 x B
In Jar 1,ratio R:Bis 2:7, in jar II there are only red marbles
so in jar 2 we have all the blue marbles i.e. B and some red marbles its no. 2/7 B
Let it be 2x and 7x
and y
2x + y= 14x
Hence,y=12x
so, we have y/2x = 12x/2x =6:1

Last edited by harsh.champ on Sun Feb 21, 2010 4:26 pm, edited 2 times in total.

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Just because something is hard doesn't mean you shouldn't try,it means you should just try harder.

"Keep Walking" - Johnny Walker

shashank.ism · Answer

tsmith93 wrote:Jason has twice as many red marbles as blue marbles. He puts them in two jars in such a way that the ratio of the number of red marbles to blue marbles in jar I is 2:7 and there are only red marbles in jar II. The number of red marbles in jar II is how many times the number of red marbles in jar I?

R=2 x B
In Jar 1,ratio R:Bis 2:7, in jar II there are only red marbles
so in jar 2 we have all the blue marbles i.e. B and some red marbles its no. 2/7 B
Let it be 2x and 7x
and y
2x + y= 14x
Hence,y=12x
so, we have y/2x = 12x/2x =6:1

Last edited by harsh.champ on Sun Feb 21, 2010 4:26 pm, edited 2 times in total.

It takes time and effort to explain, so if my comment helped you please press Thanks button

Just because something is hard doesn't mean you shouldn't try,it means you should just try harder.

"Keep Walking" - Johnny Walker

thephoenix · Answer

tsmith93 wrote:Jason has twice as many red marbles as blue marbles. He puts them in two jars in such a way that the ratio of the number of red marbles to blue marbles in jar I is 2:7 and there are only red marbles in jar II. The number of red marbles in jar II is how many times the number of red marbles in jar I?

R=2 x B
In Jar 1,ratio R:Bis 2:7, in jar II there are only red marbles
so in jar 2 we have all the blue marbles i.e. B and some red marbles its no. 2/7 B
Let it be 2x and 7x
and y
2x + y= 14x
Hence,y=12x
so, we have y/2x = 12x/2x =6:1

Last edited by harsh.champ on Sun Feb 21, 2010 4:26 pm, edited 2 times in total.

It takes time and effort to explain, so if my comment helped you please press Thanks button

Just because something is hard doesn't mean you shouldn't try,it means you should just try harder.

"Keep Walking" - Johnny Walker

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