Question

Luzia ran the 400‑meter race 3 times. Her fastest time was 52.3 seconds. Her slowest time was 56.3 seconds. If Luzia’s average time was 54.0 seconds, what was her time for the third race?

Answer 1

53.5 sec

Explanation:

Hope its right

Answer 2

53.5 sec

Explanation:

avg = 54

(56.3+52.3+x)/3 = 54

56.3+52.3+x = 54*3=162

108.5+x = 162

x = 162-108.5=. 53.5