Discussion

Explanation:

Let a = 11x + 11x+1 + 11x+2​​​​​​​

⇒ a = 11× (1 + 111 + 112​​​​​​​)

⇒ a = 11× 133

Since x is a positive integer, the least value of 11x will always be a multiple of 11 and its least value will be 11.

∴ Least possible value of a = 11 × 133 = 1463

Hence, option (d).

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