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28 Oct 2025, 11:08
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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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A man will choose two different flavors of ice cream for his sundae from the six flavors listed.
Quantity A
The number of different combinations of flavors that the man could possibly choose
Quantity B
15
Quantity A
The number of different combinations of flavors that the man could possibly choose
Quantity B
15
Updated on: 02 Nov 2025, 10:09
Originally posted by Sajjad1994 on 02 Nov 2025, 10:08.
Last edited by Sajjad1994 on 02 Nov 2025, 10:09, edited 1 time in total.
Last edited by Sajjad1994 on 02 Nov 2025, 10:09, edited 1 time in total.
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Official Explanation
Find the number combinations with the “choose” function, written as nCk or
and defined by the formula:
Recall that n! means the product of all positive integers from 1 through n, inclusive. From six flavors, we are choosing two, so we want 6C2, which equals
*Label the flavors A, B, C, D, E, and F, and list all combinations of two different flavors systematically: AB, AC, AD, AE, AF, BC, BD, BE, BF, CD, CE, CF, DE, DF, EF. There are 5 + 4 + 3 + 2 + 1 = 15 combinations in all, (C).
Answer: C
GMAT-Club-Forum-kzmr6o9r.png [ 2.43 KiB | Viewed 30 times ]
GMAT-Club-Forum-tzkp20ry.png [ 8.91 KiB | Viewed 30 times ]
GMAT-Club-Forum-hwktkzff.png [ 11.17 KiB | Viewed 30 times ]
Find the number combinations with the “choose” function, written as nCk or
Recall that n! means the product of all positive integers from 1 through n, inclusive. From six flavors, we are choosing two, so we want 6C2, which equals
*Label the flavors A, B, C, D, E, and F, and list all combinations of two different flavors systematically: AB, AC, AD, AE, AF, BC, BD, BE, BF, CD, CE, CF, DE, DF, EF. There are 5 + 4 + 3 + 2 + 1 = 15 combinations in all, (C).
Answer: C
Attachment:
GMAT-Club-Forum-kzmr6o9r.png [ 2.43 KiB | Viewed 30 times ]
Attachment:
GMAT-Club-Forum-tzkp20ry.png [ 8.91 KiB | Viewed 30 times ]
Attachment:
GMAT-Club-Forum-hwktkzff.png [ 11.17 KiB | Viewed 30 times ]
