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Probability Practice Test 1
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© examsnet.com
Question : 17
Total: 40
What is the probability of yielding theminimum amount when two coins areselected simultaneously at random from aPiggy bank containing four 1 rupee coins,three 2 rupees coins and three 5 rupees coins.
1
45
2
15
7
30
6
43
None of the above
Validate
Solution:
👈: Video Solution
Selecting 1 rupee coins will yield the minimum value.
Favourable outcomes
=
4
C
2
=
4
×
3
2
×
1
=
6
Total outcomes
=
10
C
2
=
10
×
9
2
×
1
=
45
Required probability
=
6
45
=
2
15
© examsnet.com
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