The average consumption of petrol for a car for $7$ months is $110$ litres and for next $5$ months it is $86$ litres. The average monthly consumption is

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Solution

The correct option is B $100$ L
Since. the average consumption of petrol for a car for $7$ months is $110$ litres and for next $5$ months it is $86$ litres,

$∴$ the average monthly consumption is $\frac{110 \times 7 + 86 \times 5}{7 + 5}$

$= \frac{770 + 430}{12}$

$= 100$ litres

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The average consumption of petrol for a car for 7 months is 110 litres and for next 5 months it is 86 litres. The average monthly consumption is

The correct option is B 100 LSince. the average consumption of petrol for a car for 7 months is 110 litres and for next 5 months it is 86 litres, ∴ the average monthly consumption is 110×7+86×57+5=770+43012=100 litres

The average consumption of petrol for a car for $7$ months is $110$ litres and for next $5$ months it is $86$ litres. The average monthly consumption is

The correct option is B $100$ L
Since. the average consumption of petrol for a car for $7$ months is $110$ litres and for next $5$ months it is $86$ litres,

$∴$ the average monthly consumption is $\frac{110 \times 7 + 86 \times 5}{7 + 5}$

$= \frac{770 + 430}{12}$

$= 100$ litres