Doubt from projectile motion

Ratio of minimum kinetic energy of two projectile of same mass is 4:1. The ratio of maximum height attained be them is also 4 : 1. The ratio of their ranges would be.
Thanks

I thin it should be 8:1

Answer given is 4:1

In 1st step i have written ratio if (ucosѲ)² =4
And hence ratio of ucosѲ = 2
Therefore answer will be 2 X 2 = 4