Question : The total utility derived by X by eating 6 apples is 200 utils. The marginal Utility of the $7^{\text {th }}$ apple is 30 utils. The total utility for 7 apples will be __________utils.
Option 1: 230
Option 2: 170
Option 3: 200
Option 4: 30
Correct Answer: 230
Solution : The correct answer is (a) 230.
To find the total utility for 7 apples, we need to add the marginal utility of the 7th apple to the total utility of the first 6 apples.
Total utility of 6 apples $=200$ utils
Marginal utility of the 7th apple $=30$ utils
Total utility for 7 apples $=$ Total utility of 6 apples + Marginal utility of the 7th apple
$
\begin{aligned}
& =200 \text { utils }+30 \text { utils } \\
& =230 \text { utils }
\end{aligned}
$
Therefore, the total utility for 7 apples is 230 utils.




