Select the option that will replace the question mark (?) in the given series.
45, 46, 42, 51, 35, ?
In this equation 45,46,42,51,35,?
45-46 =1, 46-42=4, 42-51=9, 51-35=16
All are the $$1\times\ 1=1$$ , $$2\times\ 2=4$$, $$3\times\ 3=9$$, $$4\times\ 4=16$$, $$5\times\ 5=25$$
So the $$35\ +\ 25\ =60$$ , The answer 60 replace the question mark
Hence option A is the correct answer
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