In following number series, two terms have been put within brackets. Choose the appropriate option - Look at this series: 5.2, 4.8, 4.4, 4, . . . What number should come next?
Answer: D. 3.6
In this simple subtraction series, each number decreases by 0.4.
Rule = (1st no.) (1st no. - 0.4 = 2nd no.) (2nd no. - 0.4 = 3rd number)... Now (5.2) (5.2 - 0.4 = 4.8) (4.8 - 0.4 = 4.4) (4.4 - 0.4 = 4) (4 - 0.4 = 3.6) ... So the answer is d = 3.6