My father eats 125 g of chocolate a day. How many grams will he eat in two weeks?

If Ken's family uses $3.5 \text{ kg}$ of rice a week, his mother buys the same amount to replenish it.
His mother buys $\boxed{3.5 \text{ kg}}$ of rice a week.

The mother pays $\text{R}45.65$ for a $3 \text{ kg}$ bag. To find the cost per $1 \text{ kg}$, divide the total cost by the total mass.

Rounding to two decimal places for currency:

She pays $\boxed{\text{R}15.22}$ for $1 \text{ kg}$.

There are 7 days in one week, so in two weeks there are:

The father eats $125 \text{ g}$ of chocolate per day. Over 14 days, he will eat:

He will eat $\boxed{1750 \text{ g}}$ of chocolate in two weeks.