Can you solve the giant iron riddle?

collections: Ted-Ed, Riddles, Mathematics
Posted 2 March 2019
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Duration of the video: 2 Min. 47 sec.
The family of giants you work for is throwing a fancy dinner party, but there’s a problem — the elder giant’s favorite shirt is wrinkled! To fix it, you’ll need to power up the giant iron. It needs two batteries to work, but the baby giant mixed the working battery pile with the dead pile. Can you test the batteries so that you get a working pair in seven tries or less??
Recommended words
come to life - 人生に来る
dinner party - ディナーパーティー
end up - 行き着く
failure - 故障
fancy - ファンシー
a giant - ジャイアント
in total - 合計で
iron - 鉄
look one's best - 一番いい
main course - 本流
to manage - 治める
a match - 一致
no matter - どんなに
order - 注文
a pile - パイル
possibility - 蓋然性
possible - 可能
rely on - 凭り掛かる
remaining - 残在
to repeat - 繰り返す
separate - 別
a set - セット
set aside - さておく
a solution - 溶液
to throw - 投げる