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Is it 6.alivapriyada wrote:Machine A and Machine B can produce 1 widget in 3 hours working together at their respective constant rates. If Machine A's speed were doubled, the two machines could produce 1 widget in 2 hours working together at their respective rates. How many hours does it currently take Machine A to produce 1 widget on its own?
1/2
2
3
5
6
Yes it is.goyalsau wrote:Is it 6.alivapriyada wrote:Machine A and Machine B can produce 1 widget in 3 hours working together at their respective constant rates. If Machine A's speed were doubled, the two machines could produce 1 widget in 2 hours working together at their respective rates. How many hours does it currently take Machine A to produce 1 widget on its own?
1/2
2
3
5
6
alivapriyada wrote:Yes it is.goyalsau wrote:I don't know much explanation about this one i did it by option first 3 are out because in combination it t 3 hour so it will be more than that, and in 5 and 6.alivapriyada wrote:Machine A and Machine B can produce 1 widget in 3 hours working together at their respective constant rates. If Machine A's speed were doubled, the two machines could produce 1 widget in 2 hours working together at their respective rates. How many hours does it currently take Machine A to produce 1 widget on its own?
1/2
2
3
5
6
6 because they both works at the same rate so it will take 6 hours
i know this is not the best explanation in the world but i really don't know how to explain it, so i am sure somebody please explain it further with the method so it will be very help full for me..
Is it 6.
could you Please explain in detail...
goyalsau wrote:alivapriyada wrote:Yes it is.goyalsau wrote:I don't know much explanation about this one i did it by option first 3 are out because in combination it t 3 hour so it will be more than that, and in 5 and 6.alivapriyada wrote:Machine A and Machine B can produce 1 widget in 3 hours working together at their respective constant rates. If Machine A's speed were doubled, the two machines could produce 1 widget in 2 hours working together at their respective rates. How many hours does it currently take Machine A to produce 1 widget on its own?
1/2
2
3
5
6
6 because they both works at the same rate so it will take 6 hours
i know this is not the best explanation in the world but i really don't know how to explain it, so i am sure somebody please explain it further with the method so it will be very help full for me..
Is it 6.
could you Please explain in detail...
Many thanks!!!Tobyias wrote:goyalsau wrote:alivapriyada wrote:Yes it is.goyalsau wrote:I don't know much explanation about this one i did it by option first 3 are out because in combination it t 3 hour so it will be more than that, and in 5 and 6.alivapriyada wrote:Machine A and Machine B can produce 1 widget in 3 hours working together at their respective constant rates. If Machine A's speed were doubled, the two machines could produce 1 widget in 2 hours working together at their respective rates. How many hours does it currently take Machine A to produce 1 widget on its own?
1/2
2
3
5
6
6 because they both works at the same rate so it will take 6 hours
i know this is not the best explanation in the world but i really don't know how to explain it, so i am sure somebody please explain it further with the method so it will be very help full for me..
Is it 6.
could you Please explain in detail...
Let X/h be machine A's constant rate and Y/h be machine B's constant rate and w stand for widget.
It follows that:
X/h + Y/h = 1/3w
doubling machine A's rate yields: 2X/h and now the two machines combined produce 1/2w per hour:
2X/h + Y/h = 1/2w
now substitute from equation one:
Y/h= 1/3w-X/h
and plug it into eq 2, which yields:
2X/h + (1/3w-X/h) = 1/2w
by rearranging:
X/h = 1/6w
Solving for w, which is 6.
Hope this helps.
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