CUET General Test 2022 20 Aug Shift 1 PYQs

The value of $\frac{(2 \cdot 7)^3 - (2 \cdot 2)^3}{(2 \cdot 7)^2 + 2 \cdot 7 \times 2 \cdot 2 + (2 \cdot 2)^2}$ is

The value of $\frac{(8.9)^2 - (2.1)^2}{8.9 - 2.1}$

The remainder when $(15^{23} + 23^{23})$ is divided by 19, is: