5
Q:
A) 196 mts | B) 220 mts |
C) 230 mts | D) 245 mts |
Answer: D) 245 mts
Explanation:
Explanation:
Let the length of the brigade is x mts
Then Distance = 130 + x mts
given speed = 45 kmph = 45 x5/18 m/s
Time = 30 sec
T = D/S
=> 30 = 130+x/(45x5/18)
=> x = 245 mts.