Title Builder Beta See instructions

Welcome to Title Builder Beta.

This small piece of kit is designed to make building your Quiz, Crossword or Puzzle question more effective. It should make finding your question easier for others and, the easier it is to find, the more likely someone is to answer it!

To build an easy to find question title simply select the paper and quiz, enter the quiz number if relevant and fill in the Publication Date. Once you’re happy click “Build Title” and the information should populate the Title field. Fill in the final required details of your question as you normally would, and click submit.

As this is a Beta we only have a limited number of papers and quizzes listed. If you think your favourite Quiz, Crossword or Puzzle should be listed here don’t hesitate to contact us.

Remember: You do not have to use the title builder - simply enter the title and question as you normally would and click submit!

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geometric progressions

irelandscall | 10:42 Sun 02nd Nov 2008 | Quizzes & Puzzles

1 Answers

insert 4 geometric means between 200 rpm and 1200 rpm.

Sun exp mag

Sunday world

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Fibonacci

A geometric progression is one on which each term is multiplied by a constant value to get the next term
General form of a G. P.: a, ar, ar^2, ar^3, ...
To insert 4 geometric means between the two given numbers is to form a geometric progression of 6 (4+2)) terms having the two given numbers as the first and last terms

The first term of your progression (a) = 200 and the sixth term (ar^5) =1200
so ar^5 / a = r^5 = 1200/200= 6
so now you know r^5 is 6

now solve the equation r^5 = 6 and you have found the constant value and can then find the missing terms by multiplying each term starting from 200 by this result.

( n.b. ^ is an accepted way of typing to the power of)

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