A man covers a total distance of 100 km on bicycle . For the first 2 hours , the speed was 20 km / hr and for the rest of the journey , it came down to 10 km / hr. The average speed will be
A
12.5 km / hr
B
13 km / hr
C
14.5 km / hr
D
20 km / hr
Correct Answer: 12.5 km / hr
gullible (adjective): easily persuaded to believe something; credulous. "an attempt to persuade a gullible public to spend their money" Similar: credulous over - trusting over - trustful trustful easily deceived/led