AMC8 2014

AMC8 2014 · Q10

AMC8 2014 · Q10. It mainly tests Arithmetic sequences basics.

The first AMC $8$ was given in $1985$ and it has been given annually since that time. Samantha turned $12$ years old the year that she took the seventh AMC $8$. In what year was Samantha born?

第一届 AMC $8$ 于 $1985$ 年举办，此后每年举办一次。Samantha 在她参加第七届 AMC $8$ 的那一年满了 $12$ 岁。Samantha 是哪一年出生的？

(A) 1979 1979

(B) 1980 1980

(D) 1982 1982

(E) 1983 1983

Answer

Correct choice: (A)

正确答案：（A）

Solution

The seventh AMC 8 would have been given in $1991$. If Samantha was 12 then, that means she was born 12 years ago, so she was born in $1991-12=1979$. Our answer is $\boxed{(\text{A})1979}$ corrections made by DrDominic

第七届 AMC $8$ 应该是在 $1991$ 年举办的。如果 Samantha 那时 $12$ 岁，说明她出生于 $12$ 年前，因此她的出生年份是 $1991-12=1979$。我们的答案是 $\boxed{(\text{A})1979}$

Topics

AR.012 Arithmetic sequences basics