top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

What is the average of the seventh even number, fifth and eleventh odd number after 400?

0 votes
210 views
What is the average of the seventh even number, fifth and eleventh odd number after 400?
posted Jan 23, 2020 by Anuradha Tabyal

Share this puzzle
Facebook Share Button Twitter Share Button LinkedIn Share Button

2 Answers

0 votes

Seventh even number- 414
Fifth odd number- 409
Eleventh odd number- 421
Average = (414+409+421)/3=414.67 or 415 rounded

answer Jan 23, 2020 by Hanifa Mammadov
0 votes

414.666666667

answer Feb 1, 2020 by anonymous



Similar Puzzles
0 votes
The average of squares of five consecutive even natural numbers is 792. What is the ratio of smallest number............

The average of squares of five consecutive even natural numbers is 792.
What is the ratio of smallest number to largest number?

+1 vote
Find the number if: The cipher is made of 6 different numerals. Even and odd digits ........

Find the number if:
The cipher is made of 6 different numerals.
Even and odd digits alternate, including zero (in this case as an even number).
The difference between two adjacent numerals is always greater than one (in absolute value).
The first two numerals (as one number) as well as the two middle numerals (as one number) are a multiple of the last two numerals (as one number).
What is the cipher? There is more than 1 solution.

0 votes
Start with any number less than 20. If number is even, halve it and If number is odd, add one. Do they always end in 1?

Start with any number less than 20. If the number is even, halve it. If the number is odd, add one. Continue using the same rules writing each number one after the other. e.g. 17, 18, 9, 10, 5, 6, 3, 4, 2, 1.

Do they always end in 1? What is the longest list of numbers?

...