China and India are the most populous countries in the world. China's population is approximately 1.45 × 10⁹, while India's population is approximately 1,400,000,000. How many more people live in China than India?
A. 5 × 10¹⁰
B. 5 × 10⁹
C. 5 × 10⁸
D. 5 × 10⁷
To find the difference in population between China and India, we can subtract the population of India from the population of China.
China's population is 1.45 × 10⁹
India's population is 1,400,000,000
1.45 × 10⁹ - 1,400,000,000 = 5 × 10⁸
Therefore, the difference in population between China and India is 5 × 10⁸.
The answer is C. 5 × 10⁸.
To find out how many more people live in China than India, we need to subtract India's population from China's population.
China's population = 1.45 × 10⁹
India's population = 1,400,000,000
Let's subtract India's population from China's population:
1.45 × 10⁹ - 1,400,000,000 = 50,000,000
So, there are 50,000,000 more people living in China than in India.
The correct option is:
D. 5 × 10⁷
To find out how many more people live in China than in India, we need to subtract the population of India from the population of China. Let's calculate it step by step:
China's population is given as approximately 1.45 × 10⁹, which is equivalent to 1,450,000,000 (move the decimal point 9 places to the right).
India's population is given as approximately 1,400,000,000.
To find the difference, we subtract India's population from China's population:
1,450,000,000 - 1,400,000,000 = 50,000,000
So, there are 50,000,000 more people living in China than in India.
Now, let's match this with the answer choices:
A. 5 × 10¹⁰ - This option is way too big and doesn't match the calculated difference.
B. 5 × 10⁹ - This matches the calculated difference of 50,000,000, so it could be the correct answer.
C. 5 × 10⁸ - This option is even smaller than the calculated difference, so it is not the correct answer.
D. 5 × 10⁷ - This option is much smaller than the calculated difference, so it is not the correct answer.
Therefore, the correct answer is B. 5 × 10⁹.