The weight of an ant averages about 3 x 10^6 kg. There are about 1 x 10^16 ants in the world. What is the approximate weight in kilograms of all the ants in the world? Write the answer in scientific notation.

1. 3 x 10^10
2. 2.45 x 10^14
3. 1.26 x 10^34
4. 3.075 x 10^7
5. 8.36 x 10^9

1 answer

To find the approximate weight of all the ants in the world, we need to multiply the weight of one ant by the total number of ants.

Weight of one ant = 3 x 10^6 kg
Total number of ants = 1 x 10^16 ants

Weight of all the ants = (3 x 10^6 kg) x (1 x 10^16 ants)

To multiply the numbers, we add the exponents:
Weight of all the ants = 3 x 1 x 10^(6 + 16) kg = 3 x 10^22 kg

So, the approximate weight of all the ants in the world is 3 x 10^22 kg. Therefore, the correct answer is not provided among the options.