Advertisements
Advertisements
Question
The Municipality of a town increases water tax by 20% and water consumption decreased by 20%. Then the percentage of increase or decrease in the monthly expenditure is:
Options
4% increase
4% decrease
5% increase
5% decrease
Advertisements
Solution 1
The Municipality of a town increases water tax by 20% and water consumption decreased by 20%. Then the percentage of increase or decrease in the monthly expenditure is: 4% decrease
Solution 2
4% decrease
Explanation:
Let initially rate of water tax was ₹ 100
By increasing the water tax rate by 20% per 1000 litre
then, water tax of 1000 litre = 120
Also, when consumption is reduced by 20%
new consumption`=1000xx80/100=800` litre
Now, water tax of 800 litres `=120/1000xx800=₹ 96`
Percentage decrease in expenditure
`=(100-96)/100xx100=4%`decrease
RELATED QUESTIONS
Find 12% of 5000
Choose the most appropriate option
The Banker’s discount on a sum of money for 18 months is Rs. 600 and the true discount on the same sum for 3 years are Rs. 750/. The rate percentage is:
A wooden almirah is sold at a certain price. By selling it at 2/3 of that price one loses 10%. Find the profit percent at the original price
A mixture of 40 litres of milk and water contains 10% of water. How much water is to be added to the mixture so that the water maybe 20% in the new mixture.
Ram’s income is 20% less than Shyam’s. How much is Shyam’s income more than Ram’s in percentage terms?
If 0.06% of a number is 84, then 30% of that number is
What percentage of numbers from 1 to 70 have 1 or 9 in the unit's digit?
A fruit seller had some apples. He sells 40% apples and still has 420 apples. Originally, he had
Two students appeared at an examination. One of them secured 9 marks more than the other and his marks were 56% of the sum of their marks. The marks obtained by them are
In a test, a candidate secured 336 marks out of maximum marks x. If the maximum marks x had been converted into 400 marks, he would have secured 192 marks. What was the maximum marks of the test?
