2 0, M r R amjan increased his monthly consumption of petrol from 200l to 300l. At what ratio did his petrol bill increased or decreased? increase or decrease?
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zany air 812 When the price of 1l of petrolisdecreasedformfrom $1.50 to $1.20, Mr Ramjan increased his monthly consumption of petrol from 200l to 300l. At what ratio