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To go to sleep, Oliver counted by 6s starting from 15 . Thus the first few numbers he named were 15,21,27,33....

The last number he named before he fell asleep was 363. How many numbers did Oliver name?

 Dec 24, 2018
 #1
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/* Number of terms of arithmetic series */
(L - F) / D + 1, where L= Last term, F = first term, D = Common difference

(363 - 15) / 6 + 1 = 59 terms.

 Dec 24, 2018
 #2
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The same question was asked here on the same website.

 Dec 24, 2018
 #4
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Thanks, PM, for those resources....

 

cool cool cool

CPhill  Dec 24, 2018

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