Afler starting from his house, Naren walked a few meters towards the east. From there, he took a right turn and walked 80 m. and then took a left hurt and walked 20 111. Finally. he took a right turn again and walked 40 m to reach the hospital. If the air distance between his house and the hospital is 130 111. how far did Naren walk towards the east initially?

Options

A. 25 m
B. 50 m
C. 30 m
D. 40 m

Answer

C

Explanation

According to question

`(130)^(2) = (120)^(2) + (x+20)^(2)`
`:. (130)^(2) - (120)^(2) = (x + 20)^(2)`
`:. x =30 m`