A car traveled at a constant speed of 88 feet/second. Did it finish a 40 miles trip in T hours?
(1mile=5280 feet)
1). T<45
2). T>42
(1mile=5280 feet)
1). T<45
2). T>42
Distance = 40*5280 = 211200 feet. Speed = 88 Time= 211200/88 = 2400 seconds = 40 mins.
St.(1) Time is 40 mins which is less than 45 hours. Sufficient.
St.(2) Time is more than 42 hours. Not sufficient.
Ans. A
