Answer:
He decorates 5 flower pots
Explanation:
60 / 12 = 5
15
9.30am-10.30am is 1h
1h=60min
60min/12min= 5
he has done 5 pots until his break,
after his break,
10.30am +20min = 10.50am
10.50am-12.50pm is 2h
2h=120min
120min/12min=10
10+5=15
He has done 15 pots
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