the total ages of two boys is now 17.what will it be in six years time?A:23 B:29 C:11 D:21最好说明细节

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the total ages of two boys is now 17.what will it be in six years time?A:23 B:29 C:11 D:21最好说明细节
the total ages of two boys is now 17.what will it be in six years time?A:23 B:29 C:11 D:21
最好说明细节

the total ages of two boys is now 17.what will it be in six years time?A:23 B:29 C:11 D:21最好说明细节
B=17+6*2 六年过后嘛!