Your bank statement for financial support should be as twice as your tuition fee.

[Pink_Flower]

Your bank statement for financial support should cover twice of your tuition fee.
Is this sentence correct?

 

[GoesStation]

Your bank statement for financial support should cover twice of your tuition fee.
Is this sentence correct?

No. A bank statement is a notice from your bank showing how much money is in your account and its activity for a period of time. It can't cover anything.

An amount that's double another amount is twice, not "twice of" the latter.

 

[Pink_Flower]

Your bank statement should confirm that you can afford to pay twice/one and a half times your tuitions.

 

[GoesStation]

Your bank statement should confirm that you can afford to pay twice/one and a half times your tuition[STRIKE]s[/STRIKE].

That works (with my correction). Tuition is always singular.

 

[emsr2d2]

A bank statement doesn't show that you can afford anything. The money in your account could already be earmarked for other things.

Your bank statement should show that you have sufficient funds to cover twice the total of your tuition fees.