Subject: mathqa
Question: one ball will drop from a certain height . the height it will reach after rebounding from the floor is 50 percent of the previous height . the total travel is 150 cm when it touches the floor on third time . what is the value of the original height ?
Option: 
A: 90 cm
B: 60 cm
C: 130 cm
D: 120 cm
Answer: B