Question

The distance of a train from station,varies directly with the time,
t. If d =100 miles when t=2 hours,find d when t=3

Answer 1

Answer:

singe t is directly proportional to d we can say 2 , 100 and 1 = 100/2 and 1 = 50 , 1*3= 50 * 3 thus distance will be 150 miles in 3 hours

Step-by-step explanation:

Answer 2

Answer:

let distance =d

time=t

d varies direct ly with t

so,

d=kt ( k= constant)

d=100 miles, t=2 hours

then, k=d/t=100/2 miles/hour=50 miles / hour

when t=3

d=k.t=50.3 miles=150 miles