There are twelve consecutive flags at an equal interval of distance. A man passes the 8th flag in 8 seconds. How many more seconds will he take to pass the remaining 4 flags ?	Pick one:
A) 2.57 seconds
B) 3.57 seconds
C) 4.57 seconds
D) 5.57 seconds
E) 6.57 seconds
let the 1st flag i placed at the origin and the remaining on the X-axis.......then the coordinate on 8th flag is (7,0)..therefore distance travelled is 7 units in 4 second ......and coordinate of 12th flag is (11,0)..there r 4 units ....so time taken is (8*4)/7=4.57 seconds   ANSWER:4.57 seconds
<result>C</result>
There are twelve consecutive flags at an equal interval of distance. A man passes the 8th flag in 8 seconds. How many more seconds will he take to pass the remaining 4 flags ?