A man deposited Rs. 10,000 in a bank at the rate of 5% simple interest annually. Find the amount in 15th year since he deposited the amount and also calculate the total amount after 20 years.
Let a mm be the distance travelled in the first second. Since the insect covers half the distance covered in the previous second in the succeeding second.
∴ Distances covered in various seconds are
Let r be the common ratio
∴
Let 3 mm distance be covered in n seconds
∴
which is impossible for any value of n.
Hence, the insect would never reach a point 3 mm away from its starting point.