The ages of three sisters form an AP, and together they… | StemPy Lab

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The ages of three sisters form an AP, and together they… | StemPy Lab

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The ages of three sisters form an AP, and together they are 36 years old. How old is the middle sister?

MathematicsEasyHigh School (11–12)Algebra › Sequences and Series A-Level IB

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The ages of three sisters form an AP, and together they are $36$ years old. How old is the middle sister?

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← A mural has 6 tiles in its first row, 11 in the second, 16 in the third, and so on. How many tiles are there in its first 16 rows?The numbers x, 13, y are in an AP, and y - x = 10. What is x? →

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