Find the average of the first 20 multiples of 50?a.512.5b.537.5c.525d.50
Question
Find the average of the first 20 multiples of 50?a.512.5b.537.5c.525d.50
Solution
The first 20 multiples of 50 are: 50, 100, 150, 200, ..., 1000.
This is an arithmetic sequence where the first term (a) is 50 and the common difference (d) is also 50.
The average (mean) of an arithmetic sequence can be found using the formula:
Average = (First term + Last term) / 2
The last term (l) is the 20th multiple of 50, which is 20*50 = 1000.
So, the average of the first 20 multiples of 50 is:
Average = (50 + 1000) / 2 = 525
So, the correct answer is c. 525.
Similar Questions
The average of six numbers is 40. If each number is increased by 10, what is the new average?A) 50B) 55C) 51D) 58
What is the average of first 25 multiples of 5?
20 numbers averaged to 40, if 25 and 55 are two numbers which are subtracted from the list, the new average become
The mean of the numbers 10, 15, 20, and 25 is:a.15b.17.5c.22.5d.25
Of the three numbers, the first is twice the second and the second is twice the third. The average of these three numbers is 21. Find the largest numbers.a.47b.38c.48d.36
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.