an insect climbs 2cm up a slippery rod in 1 sec and slips down by 1 cm over the next second. How many seconds will the insect take to reach the top of the rod 15cm high
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Answer:
30 seconds
Step-by-step explanation:
in 1 second it climbs 2 cm and next second it falls 1 cm therefore in 2 second it will 1 cm
hence, 15cm will covered in 30 seconds
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