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  9. Q79

RRB Assistant Loco Pilot (ALP) 2026 · Question 79 of 149

A toy is in the form of a solid cone having a radius of 5 cm and a height of 12 cm. It is mounted on a frustum of a solid cone, with the toy’s vertex pointed upwards, and the frustum’s smaller base having a radius of 5 cm. The larger base of the frustum has a radius of 22 cm. The slant height of the frustum is 32 cm. What is the total surface area 2 (in cm ) of the toy?

not-specified

  1. A1341π
  2. B1431π
  3. C1314π
  4. D1413πCorrect

Answer: D. 1413π

Official answer key verified. Detailed explanation coming soon.

Source: RRB ALP CBT-1 17-Feb-2026 Shift-1 — candidate response sheet (official answer-key system) · official-answer-key

← Q78View full paper (149 questions)Q80 →

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