Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> The solution in a jar with capacity of 2,850 mL is completely filled with mixtures of three oils. Two of the oils used are 440 mL and 310 mL respectively .
What is the quantity of the third oil used ?

• A. 2,250 mL
• B. 2,100 mL
• C. 2,310 mL
• D. 2,010 mL

Answer 1

The correct option is B 2,100 mL

$\text{Amount of oil in the jar = 2,850 mL}$

$\text{Amount of first oil in the jar = 440 mL}$
$\text{Amount of second oil in the jar = 310 mL}$

$\text{Total amount of both the oils}$ $\text{= 440 mL + 310 mL = 750 mL}$


To calculate the amount of third oil in the jar, we will subtract the amount of two oils in the jar from the total quantity of oil in the jar.


$\text{Hence, the quantity of the third oil is}$ $\text{2,100 mL.}$