SSC CHSL Model Paper 8

Question : 75 of 100

Marks: +1, -0

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

Validate

Solution:

Total quantity

=4000/7.5+4000/8+4000/8.5

=76700/51

litres
Total amount spent = Rs. (3 × 4000)
= Rs. 12000
Average

= 12000 ×51/76700

= 7.98

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