Question

there are 15 consecutive odd numbers.The sum of the first ten of those odd numbers is 200. what is the sum of the last five odd numbers?​

Answer 1

Answer:

The first 10 odd numbers are

1, 3, 5, 7, 9, 11, 13, 15, 17,19

The standard mathematical method of getting the sum of a series would be to add the first number of the series to the last number of the series and multiply the sum by one half the number in the series.

1 + 19 = 20

20 × 5 = 100 ( there are 10 odd numbers in the series, so half of them would be 5.

Thus the sum is 100

Answer 2

Answer:

according to this the answer is 175