Question 345 Data Sufficiency 2018 GMAT Official Guide
Question 345 Data Sufficiency 2018 GMAT Official Guide
Video explanation: A group consisting of several families visited an amusement…
Comments
Tusharsays
Hello very nice explanation.
Can you please tell me how in the second equation m=1 .you told we already calculated ,but I am not able to see it
Thank you
The case of $m=1$ forces $a$ to be an integer thus gives us the solution $a=6$ and $c=8$. This solution was earlier obtained in the video by a slightly different approach. However, either approach works as long as you are careful in showing that $a$ and $c$ can take two or more sets of values, which then established insufficiency.
Hello very nice explanation.
Can you please tell me how in the second equation m=1 .you told we already calculated ,but I am not able to see it
Thank you
The case of $m=1$ forces $a$ to be an integer thus gives us the solution $a=6$ and $c=8$. This solution was earlier obtained in the video by a slightly different approach. However, either approach works as long as you are careful in showing that $a$ and $c$ can take two or more sets of values, which then established insufficiency.