Chapter number of this question
Seven times a two digits number is equal to four times the number obtained by reversing the order is its digits.If the difference of the digit is 3 , determine the number
Hello Vinita
This will be in Chapter 3 Class 10 - https://www.teachoo.com/subjects/cbse-maths/class-10th/ch3-10th-pair-of-linear-equations-in-two-variables/