A recipe needs a ratio of 2 : 5 of sugar to flour. If Joe uses 60g of sugar, how much flour should he use?

one hundred fifty grams

A recipe needs a ratio of 2 : 5 of sugar to flour. 

If Joe uses 60 g of sugar, he should use 150 g of flour.

 If Joe uses 60g of sugar, how much flour should he use is - 150g 

Learn to use math.

What you need to learn NEXT year will depend on whether or not you learn your lessons THIS year.

if you cannot do this problem by yourself, ask your teacher or parent for help.  Because while cheating on this question can help you pass THIS year, if you cheat now, you will flunk out NEXT year for sure.

240 g  of  flour.  

You want ''2 parts'' Sugar to ''5 parts'' Flour .. and you have 60g of Sugar.

So ..

If 60g is ''2 parts'' .. 30g is ''1 part'' (60/2) .. and 150g is ''5 parts'' (30 x 5)

That's 60g of Sugar to 150g of Flour

This is a homework question. It is a Cooking & Recipe group. 

Ergo, you are not old enough to be here and should be in school and doing your OWN homework. 

This is a math (probably homework) question, not a cooking question. There are vast armies of intellectuals whose purpose in life is to help you with your homework. They hang out in Education and Reference; Homework Help.

if 2 are 60 that means 1 is 30. So what is 5, 30s? Or 5 multiplied by 30?

This is a 4th grade math question. You aren't old enough to be on this site.