Plz guys answer this.................A taken 3 hours more than B to wa

1.	Plz guys answer this.................A taken 3 hours more than B to walk a distance of 30km. But if A doubles his speed, he is ahead of B by 11/2 hours. Find their original speed.
Answer» Answer: LET speed of A be x and speed of B be y . Time taken by A = 30/x Time taken by B = 30/y According to question , 30/x = 30/y +3 - eq1 30/y - 30/2x = 3/2 - EQ 2 By solving eq 1 & 2 X= 10/3 km/h Y= 5 km/h

Plz guys answer this.................A taken 3 hours more than B to walk a distance of 30km. But if A doubles his speed, he is ahead of B by 11/2 hours. Find their original speed.

Answer»

Answer:

LET speed of A be x

and speed of B be y

. Time taken by A = 30/x

Time taken by B = 30/y

According to question ,

30/x = 30/y +3 - eq1

30/y - 30/2x = 3/2 - EQ 2

By solving eq 1 & 2

X= 10/3 km/h

Y= 5 km/h

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Plz guys answer this.................A taken 3 hours more than B to walk a distance of 30km. But if A doubles his speed, he is ahead of B by 11/2 hours. Find their original speed.​

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Plz guys answer this.................A taken 3 hours more than B to walk a distance of 30km. But if A doubles his speed, he is ahead of B by 11/2 hours. Find their original speed.