The difference in the number of years before and after is the same
6 years ago
MelissaMediocre
Is the number 20
6 years ago
Aaron Hee Guan Ru
sorry i couldnt answer earlier as i was having tuiton. As you can see from Wong’s answer, 2 units before is equal to 3 units after ie the difference didnt change... u make them equal and solve the unknown
6 years ago
Wong
Information from first sentence is not relevant.
6 years ago
Aaron Hee Guan Ru
sorry i couldnt answer earlier as i was having tuiton. As you can see from Wong’s answer, 2 units before is equal to 3 units after ie the difference didnt change... u make them equal and solve the unknown