Select the number from the given options to complete the series.
25, 30, 40, 55, 75, ___
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 100.
Given series: 25, 30, 40, 55, 75, ___
25 + 5 = 30; 30 + 10 = 40; 40 + 15 = 55; 55 + 20 = 75; 75 + 25 = 100.