Question

6) A police man spots the thief 150mts
away. And started chasing the thief
immediately. How far can the thief run
before he caught. The speed of police man
and the thief are 12 km/hr and 10 km/hr
respectively.
a) 450
b) 650
c) 750
d) 900​

Answer 1

Answer:

P__150m___T______x m (Let)_______Q.

Let Policeman caught thief at a distance (x + 150)m. And Thief has traveled x m.

Speed of Policeman

=12kmph=12×518=6018m/sec

Speed of thief

=10km=10×518=5018m/sec

In this case time is constant means Policeman covered (x + 150)m in same time thief covered x m.

Thus,

Speed of the thief Speed of Policeman=x150+x⇒5060=x150+x⇒7500+50x=60x⇒10x=7500⇒x=750m

So, Thief has traveled 750 m before the caught.

Step-by-step explanation:

So option C) is the correct answer

Mark me brainliest

Answer 2

Answer:

150m=150/1000=0.15 KM

police man Speed=12 km/hr

thief Speed=10 km/hr

Relative Speed=(12-10)=2 Km/hr

thief run=0.15*10/2=0.75 KM=0.75*1000=750 M