(UK St Paul's Girls School Sample Paper Section $A$ Question $$15$$)  Emily scores $30$ 0ut of $60$ in a test.  Hebe scores $60 \%$ in the same test.  How many more marks did Hebe get than Emily? 
Overseas Competition->Knowledge Point->Calculation Modules->Fractions->Basic Understanding of Fractions->Converting Between Fractions, Percentage and Decimals