Question
Three of the following four are alike in a certain way
and thus form a group. Which is the one that does NOT belong to that group? (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 – Operations on 13 such as adding / subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1and 3 is not allowed)Solution
182 x 2 = 364 219 x 2 = 438 260 x 2 = 520 493 x 2 = 986
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