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A bag has 50 marbles which are either black or white. Three times the
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21 Aug 2023, 03:16
21 Aug 2023, 03:16
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80% (01:12) correct
20% (03:37) wrong based on 5 sessions
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A bag has 50 marbles which are either black or white. Three times the number of white marbles is 30 less than three times the number of black marbles. What is the possible value of probability of selecting a white marble?
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Post A Detailed Correct Solution For The Above Questions And Get Kudos.
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\(\Longrightarrow\) GRE - Quant Daily Topic-wise Challenge
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Re: A bag has 50 marbles which are either black or white. Three times the
[#permalink]
26 Aug 2023, 03:30
26 Aug 2023, 03:30
1
3w=3b-30
b-w =10
b+w =50
b=30
p(w)= w/50 =20/50 =0.4
b-w =10
b+w =50
b=30
p(w)= w/50 =20/50 =0.4
gmatclubot
Re: A bag has 50 marbles which are either black or white. Three times the [#permalink]
26 Aug 2023, 03:30
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