Question

2) The distance between two places A and B on road is 70 km, A car starts from A and
the other from B. If they travel in the same direction, they will meet after 7 hours. If
they travel towards each other they will meet after 1 hour, then find their speeds.​

Answer 1

Answer:

Here is your solution in above image.

Step-by-step explanation:

Hope you have satisfied :)

Answer 2

CASE 1

TOTAL DISTANCE =70km

LET THE CAR A TRAVELLED BE x

AND CAR B TRAVELLED BE y

CAR A TRAVELLED 7x

AND B TRAVELLED 7y

ACC, TO 1st .CONDITION

7x-7y=70

7(x-y)=70

x-y=10.........(1)

CASE 2

LET THE CAR A TRAVELLED BE x×1

and the car B TRAVELLED BE y×1

ACC,TO CONDITION

x+y=70 .........(2)

now , add (1)&(2)

x-y=10

x+y=70

2x=80

x=40

substitute x valu in (2)

x+y=70

40+y=70

y=70-40

y=30

so, A CAR TRAVELLED 40KM/HR

B CAR TRAVELLED 30 KM /HR