Question

1. If x1= 13, y1= 3, x2. y2= ?, When x and y vary inversely
2. A train travels 100 km in 1 hour with a certain speed. How many kilometres it will travel in 4 hours with the same speed?

Answer 1

Answer:

2.400km

Step-by-step explanation:

1 hr=100km

4hr=4*100

=400km

Answer 2

Answer:

39

Step-by-step explanation:

1 Answers x=1/y

X1/X2=. y2/y1

x1.y1= y2.x2

13.3= y2.x2

y2.x2= 39