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· 1 Months ago

except 45 , all are multiple of prime numbers

Question:
Four of the following five are alike in a certain way and so form a group. Which is the one that does not belong to that group?
Options:
A) 45
B) 51
C) 39
D) 85
Solution:
Ans (d): Except 85, all are multiple of 3.

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