Jake, Lena, Fred, John and Inna need to drive home from a corporate reception in an SUV that can seat 8 people. If only Inna or Jake can drive, how many seat allocations are possible? Pick one:
A) 30	B) 42	C) 120	D) 360	E) 1680
5 people ,8 seats, only 2 can drive   if inna is in one seat remaining, 4 people can be arranged in 4p4 i.e 4! =24 ways   since any one can drive total ways = 24 *2= 
<gadget id="calculator">24 *2</gadget>
<output>48</output>
48 ways   4 seats can be chosen out of remaining 7 seats in 7c4 ways= 7!/(5!*2!)= 35 ways     48*35= 
<gadget id="calculator">  48*35</gadget>
<output>1_680</output>
1680   1680
<result>E</result>
Jake, Lena, Fred, John and Inna need to drive home from a corporate reception in an SUV that can seat 8 people. If only Inna or Jake can drive, how many seat allocations are possible?