Question

6. Every six months the price of a petrol increases at the rate of rupees 4 per litre taking
epigmomann moimaa linear
equation showing amount spent on petrol in December 2012
.​

Answer 1

(ii) Given, price of CNG in December 2011 =₹ a

and price of CNG in December 2012 =₹ b

Since, every year the price of CNG increases at the rate of ₹ 3 per litre.

Then, by given condition, b = a + 3

which is the required linear equation.

(iii) CNG, because CNG is cheaper than petrol and

control the pollution.

(iv) Environmental protection.

Answer 2

Answer:

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