Read carefully the questions below, then choose the letter of the best answer. Write your answer on the space before each number.
___ 10. The formula in getting the speed of object moving in a straight line is ____ a. d=s/t b. s=t/d c. t=d/t d. s=d/t
___ 11. A man walks 20 km in 4 hours. The time in the problem is ______ a. 20 km b. 20 seconds c. 4 minutes d. 4 hours
___ 12. A train covers 69 kilometers in 45 minutes. The distance covered by the train is ____________. a. 69 kilometers b. 69 miles c. 45 metres d. 45 minutes
___ 13. A car covers a distance of 450 metres in 45 minutes from San Agustin to Santiago. What is the reference point? a. 450 metres b. Santiago c. 45 minutes d. San Agustin
