Cost of a Pen and a Pencil Box Video Explanation Question The cost of 4 pens and 4 pencil boxes is ₹100. Three times the cost of a pen is ₹15 more than the cost of a pencil box. Form the pair of linear equations and find the cost of a pen and a pencil […]
Fixed Charge and Charge Per Extra Day Video Explanation Question A lending library has a fixed charge for the first three days and an additional charge for each day thereafter. Saritha paid Rs 27 for a book kept for seven days, while Susy paid Rs 21 for the book she kept for five days. Find
Cost of Each Bat and Each Ball Video Explanation Question The coach of a cricket team buys 7 bats and 6 balls for Rs. 3800. Later, he buys 3 bats and 5 balls for Rs. 1750. Find the cost of each bat and each ball. Solution Step 1: Let the Variables Let the cost of
Investment in Two Schemes Video Explanation Question Susan invested a certain amount of money in two schemes A and B, which offer interest at the rate of 8% per annum and 9% per annum respectively. She received Rs 1860 as annual interest. If she had interchanged the investments, she would have received Rs 20 more.
Cost Price of Table and Chair Video Explanation Question Jamila sold a table and a chair for ₹1050, thereby making a profit of 10% on the table and 25% on the chair. If she had taken a profit of 25% on the table and 10% on the chair, she would have got ₹1065. Find the
Cost of Books and Pens Video Explanation Question 5 books and 7 pens together cost Rs 79 whereas 7 books and 5 pens together cost Rs 77. Find the total cost of 1 book and 2 pens. Solution Step 1: Let the Variables Let the cost of 1 book = Rs \(x\) Let the cost
Cost of Bags and Pens Video Explanation Question 3 bags and 4 pens together cost Rs 257 whereas 4 bags and 3 pens together cost Rs 324. Find the total cost of 1 bag and 10 pens. Solution Step 1: Let the Variables Let the cost of 1 bag = Rs \(x\) Let the cost
Cost of Tables and Chairs Video Explanation Question 4 tables and 3 chairs together cost Rs 2250 and 3 tables and 4 chairs cost Rs 1950. Find the cost of 2 chairs and 1 table. Solution Step 1: Let the Variables Let the cost of 1 table = Rs \(x\) Let the cost of 1
Number of Pens and Pencils Video Explanation Question Reena has pens and pencils which together are 40 in number. If she has 5 more pencils and 5 less pens, then number of pencils would become 4 times the number of pens. Find the original number of pens and pencils. Solution Step 1: Let the Variables
Cost of an Audio Cassette and a Video Cassette Video Explanation Question 7 audio cassettes and 3 video cassettes cost Rs 1110, while 5 audio cassettes and 4 video cassettes cost Rs 1350. Find the cost of one audio cassette and one video cassette. Solution Step 1: Let the Variables Let the cost of one