Attempt to compare boolean with number?

So I'm trying to make a script that when the Miles Driven [in leaderstats] is changed it fires a remote event to another script to check its value. If the value exceeds a limit it Ranks the player up. Everything seem to be working fine except the value in the if statement. It gives an error in the output: Attempt to compare boolean with number.

Here's the code:

local Event = game:GetService("ReplicatedStorage").RankUpServer

Event.OnServerEvent:Connect(function(player)
	print('Event connected')
	if player.leaderstats["Miles Driven"].Value >0<1 then
		player.leaderstats.Rank = "Permit"
	elseif player.leaderstats["Miles Driven"].Value >1<10 then
		player.leaderstats.Rank = "Novice"
		
	elseif player.leaderstats["Miles Driven"].Value >9<25 then
		player.leaderstats.Rank = "Intermediate"
		
	elseif player.leaderstats["Miles Driven"].Value >24<50 then
		player.leaderstats.Rank = "Advanced"
		
	elseif player.leaderstats["Miles Driven"].Value >49<51 then
		player.leaderstats.Rank = "Semi Pro"
		
	elseif player.leaderstats["Miles Driven"].Value >50 then
		player.leaderstats.Rank = "Pro"
	end
end)

Also the reason >49<51 looks like that I can't just do == 50 because it's suppose do be mile driven in a drag strip and it's 1/4 mile, so when the player races Miles driven get 0.4 added to it so I can't go with ==.

You cannot use the < > twice on the same variable at once. This is because the first time you define it, the function returns a bool (true or false, not a number) for the < > property, then checks it again against the next number.

You need to check the value twice in each line for this to work correctly

Also, rank is presumably a string value, so you will need to write .Value after each one or it will not run properly.

Revised Server Script

local Event = game:GetService("ReplicatedStorage"):WaitForChild("RankUpServer")

Event.OnServerEvent:Connect(function(player)
	print("Event Connected")
	local val = player:WaitForChild("leaderstats"):WaitForChild("Miles Driven").Value
	local rank = player:WaitForChild("leaderstats"):WaitForChild("Rank")
	if val > 0 and val < 1 then
		rank.Value = "Permit"
	elseif val >= 1 and val < 10 then
		rank.Value = "Novice"
	elseif val >= 10 and val < 25 then
		rank.Value = "Intermediate"
	elseif val >= 25 and val < 50 then
		rank.Value = "Advanced"
	elseif val >= 50 and val < 51 then
		rank.Value = "Semi Pro"
	elseif val >= 51 then
		rank.Value = "Pro"
	end
end)