One tap fills a bucket in 10 minutes. Meera says two identical taps opened together will fill the…

Why

Meera saw 'double' and doubled the time — but here doubling the taps should CUT the time, not add to it. This is a ratio that works in reverse: more taps pouring means the bucket fills FASTER, so fewer minutes. Two taps deliver twice the water each minute, so the same bucket is done in HALF the time — 5 minutes, not 20. She multiplied when she should have divided. The clue is the direction: when 'more of the helper' makes a job quicker, time goes DOWN as helpers go up. Test: if four people dig a pit in an hour, eight don't take two hours — they take half. Meera's not right: extra taps speed the fill, so two taps finish in 5 minutes — more workers means less time, the opposite of what she said.