Account start 5 days before Jan 1
Every month 300 deducted
If Joern had a starting sum of J and Bin had a starting sum of B
After n months, the deduction, will be 300n each
Asked, whose account had more money at year end. Considering no other deposits or withdrawals and same deductions, whichever account had higher initial sum, they will end up with more money at the end of the year
Asked, which is greater J or B?
Statment 1
April 15 means 4 deductions(i.e. 1200) from both accounts
B'=2J' (amount after 1200 deduction from both)
So B > J
Sufficient
Statment 2
June 15 means 6 deductions(i.e. 1800) from both accounts
B'=4J' (amount after 1800 deduction from both)
So B > J
Sufficient
Bunuel
Joern and Bin went on a year-long round-the-world backpacking tour starting January 1. Five days before the trip, each had opened a bank account. Then their insurance companies started to withdraw $300 from their accounts, respectively, on the first business day of each month. Assuming no other deposits or withdrawals, whose account had more money in it at the end of the year of travels?
(1) On April 15 during the tour, Bin's account had twice as much money as Joern's account.
(2) On June 15 during the tour, Bin's account had four times as much money as Joern's account.