Your list · 0 हिं

Number and Letter Series · Question 34 of 68

Question 34

MediumOriginal question

Which letter continues the series A, D, I, P, ?

UCorrect answerYour answerWCorrect answerYour answerXCorrect answerYour answerYCorrect answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer D

Correct answer: D

Positions: A = 1, D = 4, I = 9, P = 16. These are $1^2, 2^2, 3^2, 4^2$ .
The next position is $5^2 = 25$ , which is Y.

Worth noting

The jumps 3, 5, 7 also show it: the next jump is 9, and $16 + 9 = 25$ . U (21) and W (23) use smaller jumps.

Concept: Letter positions that are perfect squares
Typical timeTypical: 70 s
Your timeYours: —

The rule this testsLetter series

Practise this chapter →

Ten questions from Number and Letter Series, at your own pace.

Practise this chapter →

Ten questions from Number and Letter Series, at your own pace.

Practise this chapter All 68 questions in Number and Letter Series Revise the notes for Number and Letter Series