Question

find the odd letters--GILPU/DFIMR/CEHLG/HJMPT

Answer 1

Letter series based question

simple.
Check difference between two adjacent letters.
Or if you know the number equivalent of letter(like A-1, B-2, C-3……Z-26)
Always first consider difference because it is simple to solve than 2nd method unless you perfect it.

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1.
G I L P U
difference= 1(h after G) 2(j,k after I) 3(m,n,o after L) 4(q,r,s,t after P)
observing difference, it is not odd clearly,as difference increases as we move from left to right.

2.
D F I M R
difference=1 2 3 4(same as 1.)
order - increasing from left

3.C E H L G
difference=1 2 3 -?
here the difference order is changed as after L difference is decreased
correct letter in place of 5th letter is L+4 i.e., Q

4.H J M P T
difference= 1 2 2 3
order- Increasing from left.
However, finding the odd one here is quite different.
First, a correct difference between them is to be found out

1 2 2 3
1,
2,
1*2=2,
2*2=4
last letter must be p+4
i.e., U