Worksheet on increase and Decrease Percentage
Practice the questions given in the worksheet on increase and decrease percentage.
We know, to find the increase % the formula is (increase in value/original value) × 100 % and to find the decrease % the formula is (decrease in value/original value) × 100 %.
1. Find the resulting new increased or decreased quantity due to:
(i) 8 % decrease in $ 400
(ii) 5 % increase in 25 km
(iii) 121/2 % increase in a speed of 600 km/h(iv) 30 % decrease in a temperature of 40° Celsius
(v) 2.5 % increase in a salary of $ 1250
(vi) 2.5 % decrease in 800 gram
2. Find the percentage change from the first quantity to the second quantity:
(i) $75; $90
(ii) 40 cm; 60 cm
(iii) 20 gm; 5 gm
(iv) 60 km/h; 45 km/h
(v) 5 dozen eggs; 100 eggs
(vi) 13.5; 18
3. Increase 150 by 10 % and decrease the same by 15 %. Find the new number in each case.
4. The population of a place in a particular year increased by 15 %. Next year it decreased by 15%. Find the net increase or decrease per cent in the initial population.
5. While measuring a line segment of length 5 cm, it was measured 5.2 cm by mistake. Find the percentage error in measuring the line segment.
6. A number is increased by 40 % and then decreased by 40 %. Find the net increase or decrease per cent.
7. The price of wheat increased by 10 %. By how much per cent should mother reduce her consumption in the house so that her expenditure on wheat does not increase?
8. The salary of a doctor is increased by 40 %. By what per cent should the new salary be reduced in order to restore the original salary?
9. A number 75 is misread as 57. Find the reading error per cent.
Answers for the worksheet on increase and decrease percentage are given below to check the exact answers of the above questions.
Answers:
1. (i) $368
(ii) 26.25 km
(iii) 675 km/h
(iv) 28° Celsius
(v) $1281.25
(vi) 780 gram
2. (i) 20 % increase
(ii) 50 % increase
(iii) 75 % decrease
(iv) 25 % decrease
(v) 662/3 % increase(vi) 331/3 % increase
3. 165, 127.5
4. 2.25 % decreased
5. 4 %
6. 16 %
7. 91/11 %8. 284/7 %
9. 24 %
Worksheet on Fraction into Percentage
Worksheet on Percentage into Fraction
Worksheet on Percentage into Ratio
Worksheet on Ratio into Percentage
Worksheet on Percentage into Decimal
Worksheet on Percentage of a Number
Worksheet on Finding Value of a Percentage
Worksheet on Percentage of a Given Quantity
Worksheet on Word Problems on Percentage
Worksheet on Increase Percentage
Worksheet on Decrease Percentage
Worksheet on increase and Decrease Percentage
Worksheet on Expressing Percent
Worksheet on Finding Percentage
Math Home Work Sheets
From Worksheet on increase and Decrease Percentage to HOME PAGE
Didn't find what you were looking for? Or want to know more information about Math Only Math. Use this Google Search to find what you need.
Recent Articles
-
Worksheet on Addition of Length | Word Problems on Addition of Length
Nov 17, 24 10:29 PM
Practice the third grade math worksheet on addition of length. This sheet provides different types of questions where you need to arrange the values of length under different columns to find their sum -
Worksheet on Addition of Mass | Word problems on Addition of Mass
Nov 17, 24 10:26 PM
Practice the third grade math worksheet on addition of mass/weight. This sheet provides different types of questions where you need to arrange the values of mass under different columns -
Worksheet on Addition of Capacity | Word Problems on Adding capacity
Nov 17, 24 10:19 PM
Practice the third grade math worksheet on addition of capacity. This sheet provides different types of questions where you need to arrange the values of capacity under different columns of litres and -
Subtraction of Capacity | Units of Capacity and Volume | Examples
Nov 17, 24 10:07 PM
In subtraction of capacity we will learn how to find the difference between the units of capacity and volume. While subtracting we need to follow that the units of capacity -
Measuring Capacity | Standard Unit of Capacity | Litre | Millilitres
Nov 17, 24 01:37 PM
We will discuss about measuring capacity. The milkman measures milk in liters. Petrol is given in liters. Mobil oil is sold in liters. Two milk bottles contain 1 liter of milk. One milk bottle
Percentage of the given Quantity
How much Percentage One Quantity is of Another?
New! Comments
Have your say about what you just read! Leave me a comment in the box below. Ask a Question or Answer a Question.