Proportionality
Number Theory
Level
2
If A,B,C,D are in proportion and also they are distinct positive real numbers and A=1 ; D =27 then what is the possible value of B+C note : proportionality in the sense
The answer is 12.
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1 solution
2 7 × 1 = 9 × 3 therefore the possible value of B + C is 9 + 3 = 1 2