Aptitude - Average - Discussion
Discussion Forum : Average - General Questions (Q.No. 9)
9.
A car owner buys petrol at Rs.7.50, Rs. 8 and Rs. 8.50 per litre for three successive years. What approximately is the average cost per litre of petrol if he spends Rs. 4000 each year?
Answer: Option
Explanation:
| Total quantity of petrol consumed in 3 years |
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Total amount spent = Rs. (3 x 4000) = Rs. 12000.
 Average cost = Rs. |
 |
12000 x 51 |  |
= Rs. | 6120 | = Rs. 7.98 |
| 76700 | 767 |
Discussion:
92 comments Page 5 of 10.
Shanmukh Adari said:
7 years ago
It was so useful, thanks for the answer @M.V.Krishna.
Lavina said:
7 years ago
Nice one, it's really helpful, thanks @M. V. Krishna.
Subhasmita said:
10 years ago
Please solve this equation 4000(2/15+1/8+2/17) = ?
Dev said:
1 decade ago
Explain answers in short cut as much as possible.
Muralidhar reddy said:
1 decade ago
Here how average cost calculated any explain me ?
Sathish said:
1 decade ago
Explain answers in short cut as much as possible.
Smiley said:
1 decade ago
Can anyone explain this 2/15+1/8+2/17 how it is?
Arjun said:
7 years ago
7.50/3 + 8/3 + 8.50/3
= 2.5+2.66+2.83 = 7.9.
= 2.5+2.66+2.83 = 7.9.
(5)
Chilo said:
1 decade ago
Why not choosing 8 as answer? Please explain.
SriHarsha said:
1 decade ago
Can any 1 xplain it clearly wit simpl logic.
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