Question

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

• A. 128
• B. 157
• C. 167
• D. 148

Answer 1

Answer:

A. 128

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