Another method is as follows
place E & U first
_E _ U_
now three letters remaining are V,N,S
so for V three places are available (before E ,b/w E & U , or after U
so V can be placed in 3 ways
now after V is placed , N can be placed in 4 ways(as an extra gap will be created , b/w V & E or b/w U & V)
similarly after placing N , S can be placed in 5 ways
so total ways are 5 * 4 * 3 = 60
this method is called placing technique and is useful when arrangement cases become too many.
for eg: if a question comes when there are five vowels and order shoud remain same then this method should be used.