853 ? 8 = (5 + 3),
734 ? 7 = (3 + 4)
532 ? 5 = (3 + 2),
751 ? 7 = (5 + 1)
So odd number is 751 not following the pattern.
All are squares except one number in the given option.
21 = 2, 16 = 24,
128 = 27 & 56 = 7x 23
704 ÷ 11 = 64 256 ÷ 4 = 64
832 ÷ 13 = 64 310 ÷ 5 = 62
D H F J H K P R
4 8 6 10 8 11 16 18
Hence HK is odd one out.
Except (c) all are perfect square. i. e. 112 = 121,
122 = 144, 132 = 169.
In all other pairs, the second number is 9 more than the first.
In all other pairs, first is the name of a desert which is situated in country denoted by the second
In all others, second is the part of first.
Belief is a different word from others.
'Nocturnal' is a different word because other words are related to music.
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