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Shivam kumar

· started a discussion

· 1 Months ago

what is the logic (Question:144317.0)

all no. are multiples of 23

Question:
Three of the following four are alike in a certain way and so form a group. Which is the one that does not belong to that group? 
Options:
A) 115
B) 161
C) 253
D) 345
Solution:
115 =  23 × 5
161 = 23 × 7
253 = 23 × 11
391 = 23 × 17
345 = 23 × 5 × 3

Knowledge Expert

· commented

· 1 Months ago

Dear student,
Please read the solution properly.
Keep learning,
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