What percentage of the cost of petrol is reduced by 25\%?

The price of petrol is increased by 25\%, so a person reduced his consumption by 25\%. What percentage is the rise or fall in the expenditure incurred by him on petrol? So, the increased price must be ₹100 + (25/100)\% = ₹125 ie. now cost for 100\% consumption. So, the reduced price must be 100\% – 25\% = 75\% from increased cost.

What is the reduction in quantity of Petrol consumed by Mr Brown?

Reduction in quantity of petrol consumed by Mr. Brown= 1 litre –0.83333 litre= 0.1666 lit To elaborate by an example, consider the cost of petrol as 70 rupees/ litre and Mr. Brown refills only 70 rupees petrol, no matter the increase or decrease in price. =84 rupees/ litre. So the price difference is 84–70=14 rupees/ litre.

What is the change in price after reducing the consumption?

Therefore the change in price is -6.25\% from his old price after reducing the consumption. So, the increased price must be ₹100 + (25/100)\% = ₹125 ie. now cost for 100\% consumption. So, the reduced price must be 100\% – 25\% = 75\% from increased cost. Therefore the change in price is -6.25\% from his old price after reducing the consumption.

What is the purchase cost after 10\% increase in price?

After 10\% increase the purchase cost is 1.1C per liter . We know that Expenditure= Price ×Consumption. When the price increases the quantity you get for the same price decreases. As such to keep the expenditure same, the consumption has to reduce. For eg. What you could get for Rs.100/- now costs 110. Hence qty that could be got is:

What happens when the price of rice increases by 30 percent?

When the price of rice is increased by 30 percent, a family reduces its consumption such that the expenditure is only 20 percent more than before. If 50 kg of rice is consumed by family before, then find the new consumption of family (approx.) 1.43kg 2.44kg