PERCENTS OF NUMBERS WORD PROBLEMS
About "Percents of numbers word problems"
Percents of numbers word problems :
To solve percents of numbers word problems we need to follow the steps given below :
(i) Understand the given question.
(ii) Identify that what do we have to find out from the given question.
(iii) Use the formula.
Let us look into some example problems to understand the above concept.
Example 1 :
There are 250 students in a school. 55 students like basketball, 75 students like football, 63 students like throw ball, while the remaining like cricket. What is the percent of students who like (a) basket ball? (b) throw ball?
Solution :
Total number of students = 250
(a) Number of students who like basket ball = 55
55 out of 250 like basket ball which can be represented as 55/250
Percentage of students who like basket ball
= (55/250) x 100%
= 22%
(b) Number of students who like throw ball = 63
63 out of 250 like throw ball and that can be represented as 63/250
Percentage of students who like throw ball
= (63/250) x 100%
= (126/5)%
= 25.2%
22% like basket ball, 25.2% like throw ball.
Example 2 :
In a class of 35 students, 7 students were absent on a particular day. What percentage of the students were absent?
Solution :
Total number of students = 35
Number of students absent = 7
percentage of students absent
= (Number of students absent/total number of students) x 100
= (7/35) x 100
= (1/5) x 100
= 20%
Hence 20% of students were absent.
Example 3 :
Ram bought 36 mangoes. 5 mangoes were rotten. What is the percentage of the mangoes that were rotten?
Solution :
Total number of mangoes = 36
Number of rotten mangoes = 5
percentage of rotten mangoes = (5/36) x 100
= 13.89%
Hence 13.89% of mangoes were rotten out of 36 mangoes.
Example 4 :
In a class of 70, 60% are boys. Find the number of boys and girls.
Solution :
percentage of boys = 60%
percentage of girls = 40%
Total number of students = 70
Number of boys = 60% of 70
= (60/100) x 70
= 42
Number of girls = 40% of 70
= (40/100) x 70
= 28
Example 5 :
In 2010, the population of a town is 1,50,000. If it is increased by 10% in the next year, find the population in 2011.
Solution :
Population in 2010 = 150000
Increase in population = (10/100) x 150000
= 15000
Population in 2011 = 150000 + 15000
= 165000
Example 6 :
In a class of 50, 23 were girls and the rest were boys. What is the percentage of girls and the percentage of boys?
Solution :
Total number of students in the class = 50
Number of girls = 23
Percentage of girls
= (number of girls/total number of students) x 100
= (23/50) x 100
= 0.46 x 100
= 46%
Hence 46% of students are girls.
Example 7 :
Adam got 66 marks out of 75 in Math and 72 out of 80 in Science. In which subject did he score more?
Solution :
To find in which subject he score good marks, we need to the percentage of marks he scored in each subjects.
percentage of marks in math = (66/75) x 100
= 88%
percentage of marks in science = (72/80) x 100
= 90%
By comparing the percentage of marks scored in two subjects, Adam scored more marks in science.
After having gone through the stuff given above, we hope that the students would have understood "Percents of numbers word problems".
Apart from the stuff given above, if you want to know more about "Percents of numbers word problems", please click here
Apart from the stuff given in this section, if you need any other stuff in math, please use our google custom search here.
WORD PROBLEMS
HCF and LCM word problems
Word problems on simple equations
Word problems on linear equations
Word problems on quadratic equations
Area and perimeter word problems
Word problems on direct variation and inverse variation
Word problems on comparing rates
Converting customary units word problems
Converting metric units word problems
Word problems on simple interest
Word problems on compound interest
Word problems on types of angles
Complementary and supplementary angles word problems
Markup and markdown word problems
Word problems on mixed fractrions
One step equation word problems
Linear inequalities word problems
Ratio and proportion word problems
Word problems on sets and venn diagrams
Pythagorean theorem word problems
Percent of a number word problems
Word problems on constant speed
Word problems on average speed
Word problems on sum of the angles of a triangle is 180 degree
OTHER TOPICS
Time, speed and distance shortcuts
Ratio and proportion shortcuts
Domain and range of rational functions
Domain and range of rational functions with holes
Graphing rational functions with holes
Converting repeating decimals in to fractions
Decimal representation of rational numbers
Finding square root using long division
L.C.M method to solve time and work problems
Translating the word problems in to algebraic expressions
Remainder when 2 power 256 is divided by 17
Remainder when 17 power 23 is divided by 16
Sum of all three digit numbers divisible by 6
Sum of all three digit numbers divisible by 7
Sum of all three digit numbers divisible by 8
Sum of all three digit numbers formed using 1, 3, 4
Sum of all three four digit numbers formed with non zero digits
