Question

2 persons A and B are 350m apart, if A can run at the speed of 7 m/s and B can run at the speed of 3 m/s.
Find how much time will they meet each other if:
1) In same direction
2) Opposite direction....


ANSWER ASAP!!!!!!!!
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Answer 1

IF THEY RUN IN THE SAME DIRECTION:

*Assuming A is behind B

Let x be the time needed.

Person A:

Distance = Speed x Time

Distance = 7x

Person B:

Distance = Speed x Time

Distance = 3x

The difference is 350m

7x - 3x = 350

4x = 350

x = 87.5 seconds

Answer: They will meet after 87.5 seconds.

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IF THEY RUN IN THE OPPOSITE DIRECTION:

Person A runs at 7m/s

⇒ 1 second = 7 m

Person B runs at 3m/s

⇒ 1 second 3 m

A and B run together:

1 second = 7 + 3 = 10 m

Find the time needed for them to meet:

10 m = 1 second

1 m = 1/10 second

350 m = 1/10 x 350 = 35 seconds

Answer: They will meet after 35 seconds

Answer 2

❤❤Here is your answer ✌ ✌

$\huge {\red {\bold {Answer}}}$

{1.}when they run in opposite direction

person A run with speed at 7m/s

1 second=7m

person B run with speed at 3m/s

1 second=3m

when they run together:-

1 second =>7+3=10m✔
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{2.}find the time needed to meet?

10 m=1 second

1 m=1/10 second
350 m=1/10×350=35 second✔

it means after 35 second they will meet

hope it helps you