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Instructions
In each of these questions, choose the missing term(s) out of the given alternatives.
Solution
If we look at the elements in the first row,
$$K_7\ L_5\ M_3$$
K, L and M are consecutive digits
The middle number 5 is the average of 2 extreme numbers 7+3 = 10 and 10/2 = 5
Similarly, for the second row,
$$L_9\ M_7\ K_5$$
From the first row, KLM, now LMK, this is the pattern.
9+5 = 14 and 14/2 = 7
So, for the last row
$$M_{11}\ L_9$$
We know that (11+x)/2 = 9
x = 7
From options, only $$K_7$$ is possible.
