ILLUSTRATION 4

What would come next in the following series?

A-ιo> D₁₅, G₂Q₅ J₂5_

Solution

In the series of letters represented above there is a gap of 2 letters between every two consecutive terms and hence, the next letter will be M (after skipping K and L). Thus, the correct answer should be M₃₀. Thus Option (d) is correct.