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  1. A number decreased to 721/2% gives 87. The number is ?
    1. 58
    2. 110
    3. 120
    4. 135
Correct Option: C

∵ 721/2% of N = 87
⇒ {(145/2) x N} / 100 = 87
∴ N = (87 x 2 x 100) / 145 = 120


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