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Bunuel
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P = supply = 0.20
Q = supply = 0.30
R = supply = 0.50

Defective from P: 0.02
Defective from Q: 0.04
Defective from R: 0.05


Only Q supplied: \(\frac{(0.30 * 0.04) }{ (0.20 * 0.02) + (0.30 * 0.04) + (0.50 * 0.05)} = \frac{0.012 }{ (0.004+0.012+0.025)} = \frac{0.012}{0.041} = \frac{12}{41}\)


Answer should be \(\frac{12}{41}\)
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I could not understand the math behind 0.004+0.012+0.025= 0.077
How did you get it?

MathRevolution
P = supply = 0.20
Q = supply = 0.30
R = supply = 0.50

Defective from P: 0.02
Defective from Q: 0.04
Defective from R: 0.05


Only Q supplied: \(\frac{(0.30 * 0.04) }{ (0.20 * 0.02) + (0.30 * 0.04) + (0.50 * 0.05)} = \frac{0.012 }{ (0.004+0.012+0.025)} = \frac{0.012}{0.077} = \frac{12}{77}\)


Answer C
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Hi MathRevolution,

How is (0.004+0.012+0.025) = 0.077?

Maybe I am missing something.

Thanks.
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gvij2017
I could not understand the math behind 0.004+0.012+0.025= 0.077
How did you get it?

MathRevolution
P = supply = 0.20
Q = supply = 0.30
R = supply = 0.50

Defective from P: 0.02
Defective from Q: 0.04
Defective from R: 0.05


Only Q supplied: \(\frac{(0.30 * 0.04) }{ (0.20 * 0.02) + (0.30 * 0.04) + (0.50 * 0.05)} = \frac{0.012 }{ (0.004+0.012+0.025)} = \frac{0.012}{0.077} = \frac{12}{77}\)



Hello,

Thanks for pointing that out. I missed something in the denominator part and submitted the answer. Now, have edited it.

Thanks

Answer C
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Awa327
Hi MathRevolution,

How is (0.004+0.012+0.025) = 0.077?

Maybe I am missing something.

Thanks.

Hello,

Thanks for pointing that out. I missed something in the denominator part and submitted the answer. Now, have edited it.

Thanks
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sajjad1995
=((30/100)*(4/100))/(((20/100)*
(2/100))+((30/100)*(4/100))+
((50/100)*(5/100)))
= 12/77
Hence, C is the answer.

Posted from my mobile device

Hello,

How denominator gives 77?

Thanks
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MathRevolution
sajjad1995
=((30/100)*(4/100))/(((20/100)*
(2/100))+((30/100)*(4/100))+
((50/100)*(5/100)))
= 12/77
Hence, C is the answer.

Posted from my mobile device

Hello,

How denominator gives 77?

Thanks

I have calculated only numerator and ignored calculation for denominator. Sorry for that.
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