Question

Average speed formula when three different speeds are goven

Answer 1

let three different speeds are s1 , s2,s3 and distances travelled by these speeds is d1,d2,d3 .now time to cover these distances t1=d1/s1 ,t2=d2/s2 ,t3=d3/s3.

average speed =total distance /total time=(d1+d2+d3)/t1+t2+t3