AP Police SI Mains 2019 Arithmetic and Reasoning

Instructions

A sequence of numbers or alphabets following a specific pattern is given. Fill in the blanks with suitable entry from the options that follows the same pattern.

Question 136

AZ, CW, FR, JK, .......

Solution

Using conversion table,

$$AZ=1+26=27.$$

$$CW=3+23=26.$$

$$FR=6+18=24.$$

$$JK=10+11=21.$$

So,27,26,24,21 are in difference of 1,2,3 respectively.

So,next number should be 17.

$$OB=15+2=17.$$

So, B is correct choice.

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