Asked in PPSC, FPSC and other one-paper exams (compiled from unofficial resources).
AlgebraLinear Equations
Jerry estimates that there are $m$ marbles in a jar. Harry, who knows the actual number of marbles in the jar, notes that the actual number, $n$, is within 10 marbles (inclusive) of Jerry's estimate. Which of the following inequalities represents the relationship between Jerry's estimate and the actual number of marbles in the jar?
- A.$|m - n| \geq 10$
- B.$n - 10 \leq m \leq n + 10$
- C.$m - 10 < n < m + 10$
- D.$m - 10 \leq n \leq m + 10$Correct answer
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Practice these MCQs in the appQuick fact: The inequality representing that $n$ is within 10 marbles (inclusive) of $m$ is $m - 10 \leq n \leq m + 10$.