Fraction of a quantity: divide by the denominator, multiply by the numerator. Then solve the equation.

\(\dfrac{5}{12}\) of 48	=	\(48 \div 12 \times 5 = 4 \times 5 = 20\)
So the equation is: 20 = 10 x ?
? (the missing number)	=	20 \(\div\) 10 = 2