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प्रश्न
Which of the following represents an "expression with a variable"?
विकल्प
(4 × 3) + 5
12 − 5
2n − 1
100 ÷ 10
MCQ
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उत्तर
2n−1
Explanation:
This is the only option that contains a variable (n) combined with constants.
The other options are purely numerical expressions that can be immediately evaluated.
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