Aptitude - Average - Discussion

Discussion Forum : Average - General Questions (Q.No. 9)

Average

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?

Rs. 7.98

Rs. 8

Rs. 8.50

Rs. 9

Answer: Option

Explanation:

Total quantity of petrol
consumed in 3 years

=		4000	+	4000	+	4000		litres
		7.50		8		8.50

= 4000		2	+	1	+	2		litres
		15		8		17

=		76700		litres
		51

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 9 of 10.

Mizanur Rahman said: 8 years ago

Thanks @Krishna.

Ganesh said: 8 years ago

Thanks @Krishna.

MONISH S L said: 4 years ago

Thanks @Krishna.

(3)

MONISH S L said: 4 years ago

Thanks @Krishna.

(2)

Surya said: 4 years ago

Thanks @Krishna.

Sagar said: 5 years ago

Thanks @Krishna.

Sunil yadav said: 5 years ago

Thanks @Krishna.

Sai said: 5 years ago

Thanks @Krishna.

Dokuparthi Brahmam said: 6 years ago

Thanks @Krishna.

Ravi said: 1 decade ago

Thanks krishna.

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