Asked by tracy
Three numbers form an AP, if the first and third are 5&245 respectively, find the two possible values
Answers
Answered by
Scott
d is the difference between consecutive values in an AP
... there is only one value here
... 5 + d = 245 - d
r is the ratio between consecutive values in a GP
... there would be two possible values
... 5 r = 245 / r
... there is only one value here
... 5 + d = 245 - d
r is the ratio between consecutive values in a GP
... there would be two possible values
... 5 r = 245 / r
Answered by
tracy
u didnt explain it very well all the way thanks alot
Answered by
Ms. Sue
Tracy -- we might take you seriously if you had made your complaint in standard English.
<b>You didn't</b> explain it very well<b>. Thanks a lot.</b>
<b>You didn't</b> explain it very well<b>. Thanks a lot.</b>
Answered by
Reiny
What Scott did makes perfect sense to me.
Perhaps you will understand it better if we use the standard definitions.
term(1) = a = 5
term(3) = a+2d = 245
so:
5 + 2d = 245
2d = 240
d = 120
So the 3 terms are 5, 125, and 245
There is only one answer, not two like you stated.
If you wanted the 3 terms to be a GP, then follow Scott's steps to get the two possible answers.
Perhaps you will understand it better if we use the standard definitions.
term(1) = a = 5
term(3) = a+2d = 245
so:
5 + 2d = 245
2d = 240
d = 120
So the 3 terms are 5, 125, and 245
There is only one answer, not two like you stated.
If you wanted the 3 terms to be a GP, then follow Scott's steps to get the two possible answers.
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