In how many ways can a photographer at a wedding arrange 6 people in a row from a group of 10 people, where the bride and the groom are among these 10 people, if a) both the bride and groom must be in the picture? b) exactly one of the bride and groom is in the picture? Express your answer as an integer.
Added by Chris G.
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So, we have to arrange 5 people (10-1 bride/groom unit) along with this unit. This can be done in 5! ways. Now, the bride and groom can be arranged within their unit in 2! ways. Show more…
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In how many ways can a photographer at a wedding arrange 6 people in a row from a group of 10 people, where the bride and the groom are among these 10 people, if a) the bride must be in the picture? b) both the bride and groom must be in the picture? c) exactly one of the bride and the groom is in the picture?
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How many ways can a photographer at a wedding arrange 6 people in a row from a group of 10 people where the bride and groom are part of the group of 10 such that (c) neither the bride nor the groom must be in the pic? (d) at least one of them (the bride and the groom) must be in the pic?
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In how many ways can a photographer at a wedding arrange six people in a row, including the bride and groom, if a) the bride must be next to the groom? b) the bride is not next to the groom? c) the bride is positioned somewhere to the left of the groom?
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