Aptitude - Average - Discussion

Discussion Forum : Average - General Questions (Q.No. 3)
3.
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?
Rs. 4991
Rs. 5991
Rs. 6001
Rs. 6991
Answer: Option
Explanation:

Total sale for 5 months = Rs. (6435 + 6927 + 6855 + 7230 + 6562) = Rs. 34009.

Required sale = Rs. [ (6500 x 6) - 34009 ]

   = Rs. (39000 - 34009)

   = Rs. 4991.

Video Explanation: https://youtu.be/tP4hszReksU

Discussion:
60 comments Page 2 of 6.

Deepika sharma said:   10 years ago
Let 1 sale of 6th month = x.

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

Find the value of x and get answer.

RAJKUMAR said:   10 years ago
(Add all) - (6*6500). Got answer.

Asif khan said:   9 years ago
Hi every one @Swetha method is more interesting and easy.

Chintu said:   9 years ago
You gave a nice and easy explanation. Thanks @Naveen Kumar.

Harshithakillari79@gmail.com said:   9 years ago
The sum is not 34009, but its 34099.

Karunya said:   9 years ago
Thank you @Naveen.

Ranjeet said:   8 years ago
@Naveen.

Your trick is awesome. Thanks for giving it.

Vishakha said:   8 years ago
Thank you for the explanation.

Shirin said:   8 years ago
Thanks for the given explanation.

Sana said:   8 years ago
@Swathy.

x = 5(7+5 = 1+2 = 3).explain this step.


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