womitofo
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B
show me how you get the answer. anyway, B is the correct answer. congratulation
@womitofo Step1: a+b+c+d=4*15=60 step2: a+b+c+d+e=5*16=80 step3: 60+e=80 step4: e=20
you are wonderful ☺☺
@womitofo So, you mean my brain isn't rotten yet
这个不错，动脑子的题目☺
@蓝莓 not at all, just to make sure you are not guessing ☺
@womitofo You sounded like my maths teacher when I was at school. Bet you are still a student
haha thanks, I wish
@womitofo Are you a buddhist? Just guessing through your web name
@蓝莓 not really, be honest, I am not even veggie ☺
@womitofo no worries
womitofo 7月4日 03:26
