hard · GMAT Quant
A software interface displays 7 distinct application icons in a single horizontal row. Two specific icons, Alpha and Beta, cannot be placed directly next to each other, and a third icon, Gamma, must always be placed at one of the two outer ends of the row.
How many distinct valid linear arrangements of the 7 icons are possible?
- 480
- 720
- 960
- 1,200
- 1,440
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