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AnnyKZ [126]
2 years ago
8

Anis completed a journey of 4.5 km by walking for 30 minutes at

Mathematics
1 answer:
iris [78.8K]2 years ago
5 0

Answer:

speed=d/t

let him cover x distance while walking

running d=4.5-x

s1=x/0.5 km/hr....(1)

s2=4.5-x//5/12.....(2)

atq.....s2=2+s1

s1=2x

s2=54-12x/5

by eqn 1 and 2

s1+s2=2x+54-12x/5

putting value of s2

s1+2+s1=2x+54-12x/5....taking LCM =5

10s1+10= 10x+54-12x

as s1=2x

10s1+10= -2x+54

10s1+10=-s1+54

11s1=44

speed when walking=4km/hr

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Keywords: Vertical angles, lines

Learn more about angles at:

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