The problem requires finding the total quantity of butter needed for 17 waffles, given the amount required for 4 waffles.
First, calculate the amount of butter needed for a single waffle.
Using LaTeX notation:
Butter per waffle = $\frac{680 \text{ g}}{4}$
Butter per waffle = $170 \text{ g}$
Next, multiply the butter needed per waffle by the desired number of waffles (17).
Using LaTeX notation:
Total butter needed = $170 \text{ g/waffle} \times 17 \text{ waffles}$
Total butter needed = $2890 \text{ g}$
Therefore, 2890 g of butter is needed to make 17 waffles.
A and B started a business with investment of ₹ $60,000$ and ₹ $90,000$ respectively. After 5 months, B left the business and C joined with a capital which is ₹ 60,000 less than that of B. If at the end of the year, the share of C in the profit was ₹ 42,000, then find the total profit earned at the end of the year.