Question

Ganesh walks to school everyday at certain speed in kilometre per hour if he walks faster by 2 kilometre per hour then his usual speed he takes 30 minutes less than his usual time to reach the school on the other hand if he walks lower by 1 kilometre then as usual speed will take 30 minutes more than usual time hi reach to school what is his usual speed​

Answer 1

Answer:

Ans is 4 kmph

Step-by-step explanation:

let his usual speed be S

so,

S(S+2) S(S-1)

--------- ×½ = --------×½

2 1

Or, S=4Kmph