The cost of 45 pens is Rs900. Find the cost of 1 pen

Academic Mathematics NCERT Class 6

Cost of 45 pens = ₹900

Cost of 1 pen = ₹900/45

= ₹20

Tutorialspoint

Updated on: 10-Oct-2022

86 Views

Cost of a dozen pens is $ Rs.180$ and cost of 8 ball pens is $Rs. 56$. Find the ratio of the cost of a pen to the cost of a ball pen
5 pens and 6 pencils together cost â‚¹ 9 and 3 pens and 2 pencils cost â‚¹ 5. Find the cost of 1 pen and 1 pencil.
Cost of 7 pens and 8 pencils is 87 and cost of 6 pens and 4 pencils is 66. Write linear equation for representing the above data and draw its graph. Also find the cost of 1 pen and 1 pencil from the graph.
3 bags and 4 pens together cost â‚¹ 257 whereas 4 bags and 3 pens together cost â‚¹324. Find the total cost of 1 bag and 10 pens.
5 books and 7 pens together cost â‚¹ 79 whereas 7 books and 5 pens together cost â‚¹ 77. Find the total cost of 1 book and 2 pens.
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.
Form the pair of linear equations in the following problems, and find their solution 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 a pen.
The selling price of 12 pens is equal to the cost price of 15 pens. Find the gain per cent.
The cost of 16 pens is equal to the selling price of 12 pens. Find the gain or loss percent.
The cost of ball pen is Rs. 5 less than half of the cost of fountain pen. Write this statement as a linear equation in two variables.
One pencil costs Rs. 2 and one fountain pen costs Rs. 15. Then find the cost of x pencils and y fountain pens.
The cost of 1 kg of potatoes is Rs. 8. Find the cost of 36 kg 750 g of potatoes.
The cost of $2\frac{1}{3}$ metres of cloth is Rs. $75\frac{1}{4}$. Find the cost of cloth per metre.
The cost of $8$ notebooks is $Rs.\ 40$. Find the cost of $12$ notebooks.
The cost of a notebook is twice the cost of a pen. Write a linear equation in two variable to represent this statement.

Kickstart Your Career

Get certified by completing the course

Get Started

Advertisements