The total cost of 5 pens and 2 books is ...

The total cost of 5 pens and 2 books is Rs. 150, while the total cost of 7 pens and 3 books is Rs. 219. Find the total cost of 3 pens and 1 book.

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

PAIR OF LINEAR EQUATIONS IN TWO VARIABLES
KUMAR PRAKASHAN|Exercise Objective Questions (True or False)|5 Videos
INTRODUCTION TO TRIGONOMETRY
KUMAR PRAKASHAN|Exercise Objective Questions|24 Videos
POLYNOMIALS
KUMAR PRAKASHAN|Exercise OBJECTIVE QUESTIONS|26 Videos

Similar Questions

Explore conceptually related problems

The total cost of 2 pencils and 3 pens is Rs.31. While the total cost of 3 pencils and 2 pens is Rs.29. Represent this data algebraically and graphically.

The cost of 2 pencils and 3 erasers is Rs. 9 and the cost of 4 pencils and 6 erasers is Rs. 18. Find the cost of each pencil and each eraser.

The cost of 4 pens and 4 pencil boxes is Rs. 100. Three times the cost of a pen is Rs. 15 more than the cost of a pencil box. Form the pair of linear equations for the above situation. Find the cost of a pen and a pencil box.

From the pair of linear equations in the following problems, and find their solutions graphically: 5 pencils and 7 pens together cost Rs. 50, whereas 7 pencils and 5 pens together cost Rs. 46. Find the cost of one pencil and that of one pen.

A metal box with a square base and vertical sides is to contain 1024 cm^(3) . The materical for the top and bottom costs Rs. 5//cm^(2) and the material for the sides costs Rs. 2.50//cm^(2) . Find the least cost of the box.

A bag contains some coins of Rs. 5 and some coins of Rs. 2. If the total number of coins is 40 the total amount is Rs. 125, find the number of coins of each denomination.

Form the pair of linear equations for the problems and find their solution by substitution method: The coach of a cricket team buys 7 bats and 6 balls for Rs. 3800. Later, she buys 3 bats and 5 balls for Rs. 1750. Find the cost of each bat and each ball.

The cost of notebook is twice the cost of a pen Write a linear equation in two variables to represent this statement (Take the cost of a notebook to be Rs x and that of a pen to be Rs y)

From a bus stand in Bengaluru, if we buy 2 tickets to Malleswaram and 3 tickets to Yeshwanthpur, the total cost is Rs. 46, but if we buy 3 tickets to Malleswaram and 5 tickets to Yeshwantpur the total cost is Rs. 74. Find the fares from the bus stand to Malleswaram, and to Yeshwanthpur.

A cottage industry produces a certain number of pottery articles in a day. It was observed on a particular day that the cost of production of each article (in rupees) was 3 more than twice the number of articles produced on that day. If the total cost of production on that day was Rs. 90. find the number of articles produced and the cost of each article.

KUMAR PRAKASHAN-PAIR OF LINEAR EQUATIONS IN TWO VARIABLES -Test Your Skills

Ahaam and Arya have certain sums with them. If Arya gives Rs. 50 to Ah...
Text Solution
|
The sum of digits of a two digit number is 10. The number obtaiend by ...
Text Solution
|
The total cost of 5 pens and 2 books is Rs. 150, while the total cost ...
Text Solution
|
There are 50 students in a class. Each boy in the class contributed Rs...
Text Solution
|
Solve by the elimination method: 2x+y=10, 3x+2y=17
Text Solution
|
Solve by the elimination method: 3x+2y=11, x-4y=13
Text Solution
|
Solve by the elimination method: 3x+4y=12, 6x+8y=20
Text Solution
|
Solve by the elimination method: x+5y=11, 2x-3y=9
Text Solution
|
Solve by the elimination method: 2x+3y=2, 5x+4y=3(5)/(6)
Text Solution
|
Solve by the elimination method: 3x-5y=3, 2x+3y=-17
Text Solution
|
The sum of a two digit number and the number obtained by interchanging...
Text Solution
|
Two numbers are in the ratio 3:4. If 5 is added to each number, their ...
Text Solution
|
The sum of the numerator and the denominator of a farction is 9. If 3...
Text Solution
|
The length of a rectangel exceeds twice its breadth by 2 cm. If the pe...
Text Solution
|
10 years ago, the age of a father was four times the age of his son th...
Text Solution
|
Solve the following pairs of linear equations by cross-multiplication ...
Text Solution
|
Solve the following pairs of linear equations by cross-multiplication ...
Text Solution
|
Solve the following pairs of linear equations by cross-multiplication ...
Text Solution
|
Solve the following pairs of linear equations by cross-multiplication ...
Text Solution
|
Solve the following pairs of linear equations by cross-multiplication ...
Text Solution
|