Answer:
16m/s
Explanation:
distance travelled from L to M = 6 x 10 = 60m
distance travelled from M to N = 160 - 60 = 100m
time taken to travel from M to N = 100/25 = 4 seconds
average speed = total distance / total time = 160m / (6 + 4) seconds = 16m/s
hope that helps!
this is a question on speed, distance and time. I have a formula for it up in my insta page (learntionary) if you need it :)