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Complete the series: 28, 42,59,79,102, ?

A128

B157

C167

D148

Answer:

A. 128

Read Explanation:

Find the differences between consecutive terms:

  • 42 − 28 = 14

  • 59 − 42 = 17

  • 79 − 59 = 20

  • 102 − 79 = 23

The differences increase by 3 each time:

14, 17, 20, 23, 26

So the next term is:

102 + 26 = 128

Answer: 128

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