Question 337 Data Sufficiency 2018 GMAT Official Guide
Question 337 Data Sufficiency 2018 GMAT Official Guide
Video explanation: What is the total number of coins that Bert and Clare have?…
Comments
Ashwathsays
I did it a little differently, kindly let me know if my approach is correct
so when combining 1 and 2, we can only assume values of c to be either 8,10 or 12 (we cant take odd values of c coz then we wont get b as an integer), and in those cases we get total of 20,25 and 30 respectively but only 25 is valid coz it satisfies the second constraint total of B and C between 21 and 28, the others don’t. So thus we get one conclusive answer and get option c as the ans.
I did it a little differently, kindly let me know if my approach is correct
so when combining 1 and 2, we can only assume values of c to be either 8,10 or 12 (we cant take odd values of c coz then we wont get b as an integer), and in those cases we get total of 20,25 and 30 respectively but only 25 is valid coz it satisfies the second constraint total of B and C between 21 and 28, the others don’t. So thus we get one conclusive answer and get option c as the ans.
Thanks.
Ashwath,
Yes, that is a perfectly fine way of approaching the problem.