What will come in place of the question mark (?) in the following questions ?
Expression : $$\frac{12^2-4^2}{9^2-3^2}=?$$
= $$\frac{(12 - 4) (12 + 4)}{(9 - 3) (9 + 3)}$$
= $$\frac{8 \times 16}{6 \times 12}$$
= $$\frac{16}{9} = 1\frac{7}{9}$$
Create a FREE account and get: