The spider is inside a 10 cm glass jar. It can climb 2 cm per minute then takes a rest every minute.While taking a rest it slides down 1 cm. How many minutes does it take for the spider to get out of the glass jar? thank you..
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Answer:
20 min
Step-by-step explanation:
Total path to be covered = 10 cm
In one minute, it climbs = 2 cm
In the next min. it slides down 1 cm
So, net distance covered in 2min = 2-1
= 1cm
Therefore, 1cm ----------> 2 min
10cm ----------> 10x2
= 20 min
Ans. 20 minutez
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