12 minutes 45 seconds from 20 minutes 5 seconds
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Step-by-step explanation:
12mint 45sec from 20mint 5sec
(12mint45sec) from (20mint5sec)
1mint=60sec
12mint=12×60=480sec
1mint=60sec
20mint=20×60=1200sec
(480×45sec) from(1200×5sec)
(21600sec) - (6000sec)
15600sec
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