NIELIT 2016 MAR Scientist C - Section A: 4

Question

A grocer has a sale of $Rs.6435,Rs.6927,Rs.6855,Rs.7230$ and $Rs.6562$ for $5$ consecutive months. How much sale must he have in the sixth month so that he gets an average sale of $Rs.6500$?

• A. $\text{Rs.4991}$
• B. $\text{Rs.5991}$
• C. $\text{Rs.6001}$
• D. $\text{Rs.6991}$

Answer 1

According to the given information assume that the sixth-month sale is $x$ rs.;

$\implies6500=\frac{6435+6927+6855+7230+6562+x}{6}$

$\implies 6500*6=34009+x$

$\implies x=39000-34009$

$\implies x=4991$ rs

Option $(A)$ is correct.

Answer 2

Answer is A

(6435+6927+6855+7230+6562+x)/6=6500

On solving, x=4991

For detailed solution, refer here 

https://www.toppr.com/ask/question/a-grocer-has-a-sale-of-rs-6435-rs-6927-rs-6855-rs-7230-and/