Question

certain distance is covered at certain speed S1 if
half of this distance is covered in double the time
S then find ratio of S1& S2 If S1 is 40km/hr
then find S2​

Answer 1

Answer:4:1

Step-by-step explanation:

Let the original speed be S1 and time t1 and distance be D.

Now,

(D2)2t1=S2S2=D4t1 andS1=Dt1

Thus,S1S2=41=4:1

Answer 2

Answer:

I don’t know

Step-by-step explanation: