1. Find the wrong number in the series. 7, 28, 63,124, 215, 342
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By: anil on 05 May 2019 02.01 am
By observing the terms of series it can be deduced that the series must follow the pattern
$$2^3 -1$$,$$3^3 -1$$,$$4^3 -1$$,$$5^3 -1$$,$$6^3 -1$$,$$7^3 -1$$
So option A is correct
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$$2^3 -1$$,$$3^3 -1$$,$$4^3 -1$$,$$5^3 -1$$,$$6^3 -1$$,$$7^3 -1$$
So option A is correct