A number increased to 1371/2% gives 33. The number is ?

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A number increased to 137¹/₂% gives 33. The number is ?

1. 22
2. 24
3. 25
4. 27

Correct Option: B

∵ 137¹/₂% of N = 33
⇒ {(275/2) x N} / 100 = 33
∴ N = (33 x 2 x 100) / 275 = 24