A cat climbs a 21- meter pole. In the
first minute it climbs 3 meter and in the second minute it descends one meter.
In how minutes the cat would reach the top of the pole?
🎥 Video solution / Text Solution of this question is given below:
Every 2 minutes, net climb = 3 - 1 = 2 meters
In 20 minutes, the cat climbs 10 × 2 = 20 meters
At the start of the 21st minute, the cat climbs 3 meters and reaches the top (21 meters) before it can slip.
✅ Final Answer: The cat will reach the top in 21 minutes.