Monkey

A monkey fell into a well 20 metres deep. Every day it climbs 3 metres, but during the night it slips back 2 m. On what day does it get out of the well?

Final Answer:

n =  18

Step-by-step explanation:

3n2(n1)=20 3n2n+2=20 n+2=20 n=202=18



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