Solve the system of equations 217x+131y=913 and 131x+217y=827 / Class 10 Maths

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Solve the system of equations 217x+131y=913 and 131x+217y=827 / Class 10 Maths

The sum of digits of a two digit number is 15. The number obtained by reversing the order of digits of the given number by 9. Find the given number.
   • The sum of digits of a two digit number is...  

Vijay 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. He received Rs.1860 as the total annual interest. However had he interchanged the amounts of investments in the two schemes, he would have received Rs. 20 more as annual interest. How much money did he invest in each scheme? / Pair of linear equations in two variables / Class 10 Maths
   • Vijay invested a certain amount of money i...  

Find the value of m and n for which the system of linear equation has infinitely many solutions 3x+4y=12, (m+n)x+2(m-n)y=5m-1
   • Find value of m and n if linear equation h...