Question

when a particle is thrown vertically upwards , its velocity at its one third of its maximum height is 10√2 m/s. the maximum height attained by it is
1) 20√2 m
2) 30 m
3) 15 m
4) 12.8 m

who's answer is 1st and correct i will make him/her as brainlist

Answer 1

i got answer 25 meter

tell me it is correct or not