alleryThe row a,b,c,d,e,f uses1–6 once. c=a+b; e=b+d; f=a+d; a<b<d. Find e.
A3
B5
C4
D6
Answer & Solution
Correct answer: D. 6
The sum relations force a+b+d=7; strict order leaves1,2,4 and therefore e=6.
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