Question

In a race of 800m l beats m by 45s and beats n by 150m if m and n run a 800m rce,m beats n by 45 se find the time taken by m to run the race

Answer 1

Answer:

Question is wrong probably

Step-by-step explanation:

distance = 800m

ti-tm = 45       ...eq 1

800-sn*ti = 150   .. eq 2

tm-tn = 45        ...eq 3

sn = 800/tn      ..eq 4

so eq2 is

800-(800/(tm-45))*(45+tm) = 150

650 = 800/(tm-45)*(tm+45)

650tm - 650*45 = 800tm +800*45

-150 tm =  800*45 + 650*45

tm = -45 s