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?
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 5 of 6.
PIA said:
1 decade ago
HI FOLKS...ITS EASILY CN BE DONE AS:
LET THE SALE OF 6TH MONTH BE X
=>(6435 + 6927 + 6855 + 7230 + 6562 + X)/6=6500
=>(34009+X)/6=6500
=>34009+X=(6500 x 6)
=>X=39000 - 34009
=>X=4991
IE, RS.4991
LET THE SALE OF 6TH MONTH BE X
=>(6435 + 6927 + 6855 + 7230 + 6562 + X)/6=6500
=>(34009+X)/6=6500
=>34009+X=(6500 x 6)
=>X=39000 - 34009
=>X=4991
IE, RS.4991
Venkat said:
1 decade ago
@avinash
i.e,
since 6500 is d average
we write down all as follows
6435+65=6500
6927-427=6500
6855-355=6500
7230-730=6500
6562-62=6500
add all the values (i.e 65,-427,-355,-730,-62) we get -1509 adding it with 6500 we get 4991
i.e,
since 6500 is d average
we write down all as follows
6435+65=6500
6927-427=6500
6855-355=6500
7230-730=6500
6562-62=6500
add all the values (i.e 65,-427,-355,-730,-62) we get -1509 adding it with 6500 we get 4991
Sravya said:
1 decade ago
Naveen your answer is too good.
SUSHMITA said:
1 decade ago
Thanks naveen.
Roopa said:
1 decade ago
Naveen thank you.
Muthulakshmi said:
1 decade ago
Naveen your answer is easily understandable. Thank you verymuch.
Isha said:
1 decade ago
Thank you so much naveen its so easy.
Sanjana said:
1 decade ago
Naveen you are correct.
Raj said:
1 decade ago
Why should we multiply 6500 with 6 explain me?
Raj said:
1 decade ago
Naveen your explain is easy to understand.
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