S1 is the series of five consecutive multiples of four, whose Sum is 100 and S2 is the series of four consecutive even number. If second number of S2 series is 6 less than highest number of S1 series, then find the average of S2 series?

S1 is the series of five consecutive multiples of four, whose Sum is 100 and S2 is the series of four consecutive even number. If second number of S2 series is 6 less than highest number of S1 series, then find the average of S2 series? Correct Answer 23

Let the four numbers be 4x, (4x + 4), (4x + 8), (4x + 12), (4x + 16)

4x + (4x + 4) + (4x + 8) + (4x + 12) + (4x + 16) = 100

⇒ x = 3

Numbers are 12, 16, 20, 24, 28

Second number of S2 series = 28 - 6 = 22

S2 series is 20, 22, 24, 26

Average of S2 series = (20 + 22 + 24 + 26)/4 = 23
Bissoy MCQ

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