Mathematics - Sequence & Series Question with Solution | TestHub

MathematicsSequence & SeriesA.P.Medium2 minQB

MathematicsMediumsingle choice

Eleven arithmetic means are inserted between 28 and 10. How many of those means are integers?

Answer:

Solution:

The 13 -term A.P. has difference $(10 - 28) /12 = - 3/2$ . Its inserted terms are integral precisely at even steps 2, 4, 6, 8, 10, giving five.

Stream:JEESubject:MathematicsTopic:Sequence & SeriesSubtopic:A.P.

⏱ 2mℹ️ Source: QB

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