alleryPieces x, x+4 and 2x cm total at most 100 cm. The third is at least 7 cm longer than the second. Find x.
A11 ≤ x ≤ 24
B7 ≤ x ≤ 24
C11 ≤ x ≤ 25
D11 < x < 24
Answer & Solution
Correct answer: A. 11 ≤ x ≤ 24
The total gives 4x + 4 ≤ 100 while 2x ≥ x + 11, yielding 11 ≤ x ≤ 24.
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