Question

Answer 1

\(\dfrac{x+1}{30240\times20192019}=\dfrac{5656}{7272\times20162016}\)

=>\(\dfrac{x+1}{30240\times2019\times10001}=\dfrac{5656}{7272\times2016\times10001}\)

=>\(\dfrac{x+1}{30240\times2019}=\dfrac{5656}{7272\times2016}\)

=>\(\dfrac{x+1}{2^5\cdot3^4\cdot5\cdot7\cdot673}=\dfrac{56}{72\times2016}=\dfrac{7}{9\times2016}=\dfrac{1}{288\times9}\)

=>\(\dfrac{x+1}{2^5\cdot3^4\cdot5\cdot7\cdot673}=\dfrac{1}{2^5\cdot3^4}\)

=>\(\dfrac{x+1}{5\cdot7\cdot673}=1\)

=>x+1=23555

=>x=23554

=>Chọn C