Question

- Mr. Anna Hazare, Padyatra Party wanted to go
from Delhi to Dehradun. The Walkers travelled
150 km straight and then took a 45° turn towards
Varanasi and walked straight for another
120 km. Approximately how far was the party
from the starting point?
(a) 192 km
(b) 90 km
(C) 30 km
(d) 250 km

I WANT THE SOLUTION ONLY MEANS ONLY SOLUTION NOT ANSWER IN OPTIONS​

Answer 1

Answer:

(b) 90 km

Step-by-step explanation:

let Delhi , Dehradun and Varanasi as A , B And C.

after joining all the three points you will find a right angled triangle.

by using Pythagoras theorem

H square = P square + B square

BC SQUARE = AB SQUARE + AC SQUARE

120 SQUARE = 150 SQUARE + AC SQUARE

14400 - 22500 = AC SQUARE

- 8100 = AC SQUARE

90 = AC. (THE DISTANCE IS ALWAYS POSITIVE)