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From a group of three boys and four girls, a school hallway monitor 20 Jul 2025, 22:00
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Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

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93% (00:36) correct 7% (01:26) wrong based on 125 sessions

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From a group of three boys and four girls, a school hallway monitor group is to be selected. If the group is to be formed of four girls, how many different such groups can be formed?

A. 1
B. 4
C. 6
D. 18
E. 24


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A
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From a group of three boys and four girls, a school hallway monitor 20 Jul 2025, 22:39
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We can only form a group of 4 girls from 3 boys and 4 girls in one way.

(A) is the answer.
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From a group of three boys and four girls, a school hallway monitor 21 Jul 2025, 03:47
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Ans : A

Selecting 4G out of 3B and 4G = only 1 way.
As there is no differentiation given in The Monitor group members (position, role, or anything) only 1 way such group can be formed.
Bunuel
From a group of three boys and four girls, a school hallway monitor group is to be selected. If the group is to be formed of four girls, how many different such groups can be formed?
A. 1
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From a group of three boys and four girls, a school hallway monitor 21 Jul 2025, 08:15
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We can form group of four girls. We can do it in these ways
4G 0B
4G 1B
4G 2B
4G 3B

We are satisfying all the conditions in the question. It is not mentioned that the maximum number of members in the group should be 4.
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From a group of three boys and four girls, a school hallway monitor 22 Jul 2025, 04:23
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It is mentioned that a group of 4 girls is to be formed.
harsha77
We can form group of four girls. We can do it in these ways
4G 0B
4G 1B
4G 2B
4G 3B

We are satisfying all the conditions in the question. It is not mentioned that the maximum number of members in the group should be 4.
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From a group of three boys and four girls, a school hallway monitor 22 Jul 2025, 05:39
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Yes, I am forming a group of 4 girls and boys. We are not running away from not forming 4 girls, if the question had told me to form a group of only 4 girls. Then, I would agree that there is only one way. However, the question says ways to form a group of 4 girls.

IMO, we can have boys as well alongside girls.

The question is ambiguous. It could have been formed better.
D3N0
It is mentioned that a group of 4 girls is to be formed.
harsha77
We can form group of four girls. We can do it in these ways
4G 0B
4G 1B
4G 2B
4G 3B

We are satisfying all the conditions in the question. It is not mentioned that the maximum number of members in the group should be 4.
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