Question

A 10 oz box of Mathy Oats costs $3. What will be the equivalent cost of 100 oz box of Mathy Oats?
Report the answer by constructing ratio table.

• A. $27$
• B. $24$
• C. $30$
• D. $21$

Answer 1

The correct option is C $30$

Given that, 10 oz box costs $3$.
Hence,
$\text{Ratio}=10:3$


Second column of the table shows the $10$ oz box with $$3$ cost.
To get the price of 100 oz box, multiply by $\frac{100}{10}=10$ with $10$ oz box.
And similarily multiply by
$\frac{100}{10}=10$ with $$3$ to get the cost of $100$ oz box.
So, the cost of $100$ oz box $=10\times 3$
$=$$$30$
Thus, final column of the table will be $100$ oz box with $$30$ cost.