David took a walk around a park twice. He took 12.4 minutes to walk the first round. In the second round, he took 3.2 few minutes then he did the first round. How long did David take to complete his walk altogether? give the answer with working
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5
Answer:
first round > 12min 40sec
second round> 9min 20sec (3.2 min less than first)
total time > 22min 00sec
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1
22min 00sec
22min 00sec
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