Lesson 9 of 11 • 1 upvotes • 14:26mins
Problems based on numbers 1. A two digit number is 4 times the sum of its digits. If 18 is added to the number, the digits are reversed. Find the number. 2. The sum of the digits of a two digit number is 8 and the difference between the number and that formed by reversing the digits is 18. Find the number. 3. The sum of a two digit number and number obtained by reversing the order of its digits is 165. If the digits differ by 3, find the number.
11 lessons • 2h 5m
Introduction of Pair of Linear Equations (in Hindi)
11:26mins
Nature of Lines and Consistency (in Hindi)
6:40mins
Nature of Lines, Methods of Solving Linear Equations (in Hindi)
12:12mins
Substitution Method (in Hindi)
10:31mins
Elimination Method (in Hindi)
9:56mins
Cross-multiplication method (in Hindi)
11:52mins
Equations reducible to a linear equations (in Hindi)
12:56mins
Word Problems based on Articles & Numbers (in Hindi)
11:44mins
Word problems based on numbers and digits ( in Hindi)
14:26mins
Problems based on fractions (in Hindi)
13:43mins
Word problems based on Ages (in Hindi)
10:10mins