Question 32
Select the number from among the given options that can replace the question mark (?) in the following series.
64, 68, 77, 93, 118, ?
Solution
$$64+2^2\ =\ 64+4\ =\ 68$$
$$68+3^2\ =\ 68+9\ =\ 77$$
$$77+4^2\ =\ 77+16\ =93\ $$$$93+5^2\ =\ 93+25\ =118\ $$
$$118+6^2\ =\ 118+36\ =154\ $$
Hence 154 will come in place of the question mark.
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