1.

ven times a two-digit number is equal to four times the number formed by reversing thedigits. The sum of the digits of the number is 3. Find the numb

Answer»

Let numbers be x at ones place and y at tens place so 10y+x is that digit now reversed digit is 10x+yaccording to question 7 (10y+x)=4(10x+y)x=2y (i)now given x+y=3from eq. i 2y=x2y+y=3y=1sox=2required original no. is 21 and reversed digit is 12



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