prep 2-ds- 109

luckytu

Marta bought several pencils.  If each pencil was either a 23-cent pencil or a 21-cent pencil, how many 23-cent pencils did Marta buy?

 

(1)  Marta bought a total of 6 pencils.

 

(2)  The total value of the pencils Marta bought was 130 cents.

waterpoo

答案是不是B？花130块买2种铅笔貌似只有一种买法：2根23的4根21的。

xp635

楼上正解