Question

answer the question step by step

Answer 1

Answer:

speed of car A is 31.19 km/h and the speed of car B is 21.19 km/h

Step-by-step explanation:

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Answer 2

Answer:

The speed of Car A is 45km/hr.

The speed of Car B is 55km/hr.

Step-by-step explanation:

HEY there, Hope it helps.

Let 1st car be A and 2nd be B

Distance between A & B is 110km.

←A & ← B both travel in same direction.

but their speed is not the same. So they both meet after 11 hours.

let the speed of A be x and B be y.

if they travel towards each other →← they meet in 1hr. and 6 min or 11/10 hour.

BY relative motion concept we know,

when they are moving in same direction ,the speed is x-y.

when they are moving towards each other,the speed is x+y.

Distance = 110km

11(x-y)=110

x-y=10---›(i)

similarly

11/10(x+y)=110

x+y=100---›(ii)

Solving (i) & (ii)

x+y=100

x -y=10

_____

2x=90.

x=90/2=45 Km/ hr.

substitute x in x+y=100

so,45+y=100;y=55 km/hr.

The speed of Car A is 45km/hr.

The speed of Car B is 55km/hr.

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