WRITE VARIABLE EXPRESSIONS WORD PROBLEMS
About "Write variable expressions word problems"
Write variable expressions word problems :
Here we are going to see some practice problems on variable expressions.
Example 1 :
Anaba has 10 more marbles than Susan. Write the variable expression to shoe the number of marbles that Anaba has.
Solution :
Let Susan have "x" marbles.
Anaba has (x + 10) marbles
Example 2 :
The length of a rectangular hall is 4 meters less than 3 times the width of the hall. What is the length, if the breadth is b meters?
Solution :
Let "x" be the width of the hall
Then,
length of the hall = 4 meters less than 3 times the width of the hall
4 meters less means we have to subtract 4,
So, length of the hall = 3x - 4
Example 3 :
A rectangular box has height h cm. Its length is 5 times the height and width is 10 cm less than the length. Express the length and the width of the box in terms of the height.
Solution :
"h" be the height of the rectangular box
length = 5 times the height ==> 5h
width = 10 cm less than the length. ==> 5h - 10
Hence length and width of the box are 5h and 5h - 10 respectively.
Example 4 :
The speed of a bus is 10 km/hour more than truck going on the same road.
Solution :
Let "x km/hour" be the speed of the truck
The speed of a bus = 10 km/hour more than truck
= 10 + x
Hence the speed of the bus is 10 + x.
Example 5 :
Price of oil per litre is 5 times the price of rice per kg.
Solution :
Let "x " be price of rice per kg
Price of oil = 5 times the price of rice per kg
= 5x
Hence the price of oil per kg is 5x.
Example 6 :
Price of wheat per kg is $5 less than the price of rice per kg.
Solution :
Let "x " be price of rice per kg
Price of wheat = $5 less than the price of rice per kg
= x - 5
Hence the price of wheat per kg is x - 5.
Example 7 :
How old will Susan be 5 years from now?
Solution :
Let "x " be present age of Susan in years
Five years from now Susan will be "x + 5" years old.
Example 8 :
How old was Susan 4 years ago?
Solution :
Let "x " be present age of Susan in years
Four years ago Susan was "x - 4" years old.
After having gone through the stuff given above, we hope that the students would have understood "Write variable expressions word problems".
Apart from the stuff given above, if you want to know more about "Write variable expressions 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
