Anna starts the race 10m ahead of ping.ping runs at 20%faster tan anna`s speed.they will be level in the race after 9seconds.find average speed of anna

Answer 1

if anna's speed is s, then since distance = speed*time,

9s = 9(1.2s)-10
9s = 10.8s - 10
1.8s = 10
s = 5.55 m/s

Answer 2

Ping and Anna compete in a handicap sprint race. Anna starts the race 20 m ahead of Ping. Ping
runs at an average speed that is 15% faster than Anna’s average speed. The two sprinters will be level
in the race after 16 seconds. Find the average speed of: