Basically you know that they are 2 consecutive numbers whose product is 1980. <span>n*(n+1)=1980 </span> <span>n^2 + n - 1980 = 0 </span> <span>(n -44)(n + 45)= 0 </span> <span>n=44 </span> <span>so the 2 page numbers is 44 and 45. </span>
<span>The faster way is just to take the square root of 1980 and since that is 44.497 you can conclude that the 2 numbers is below and above it (44, 45)</span>
