If '+' means '×', '×' means '-', and '÷' means '+', then which of the following would be the value of 14 ÷ 2 + 8 × 5?
Mahesh sold \( \frac{3}{4} \) of his stock at a gain of 20% and the remaining stock at a gain of 15%. Find the total gain percentage (approximate).
If \( \frac{154}{0.154} \)= \( \frac{15.4}{x} \), then find the value of x.