5. Neha leaves home at 6 o'clock in the morning and travels at a speed of 45 km/h. Two hours later,
her friend Sahil follows her travelling at a speed of 60 km/h. At what time will Sahil catch up with
her?
Answers
Given : Neha leaves home at 6 o'clock in the morning and travels at a speed of 45 km/h.
Two hours later, her friend Sahil follows her travelling at a speed of 60 km/h.
To Find : . time Sahil catch up with Neha
Solution:
Let say after T hrs of Neha Leaves Sahil catch up
Distance = speed x Time
Speed of Neha = 45 km/hr
Distance covered by Neha = 45T km
Sahil will travel for 2 hrs less = T - 2 hrs
Sahil speed = 60 km/hr
Distance covered by Sahil = 60(T - 2)
60(T - 2) = 45T
= 4(T - 2) = 3T
=> 4T - 8 = 3T
=> T = 8
8 hrs after 6 O clock in Morning
= 6 + 8 = 14
14 = 12 + 2
= 2 PM
Sahil catch up with Neha at 2 PM
Learn More:
A thief, after committing a theft runs at a uniform speed of 50 m/min ...
brainly.in/question/8443657
A train is targeted from Delhi to Mumbai at an average speed of 80 ...
brainly.in/question/20695026