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RRB NTPC 2022 · Question 80 of 110

The surface area of a sphere is 61600 sq. cm. Find the volume of the sphere (in cube m). [Use π = 22/7]

  1. A4.312/3Correct
  2. B4.312
  3. C43.12/3
  4. D43.12

Answer: A. 4.312/3

Explanation

The surface area of the sphere =61600cm2 4πr2 =61600 r2= (61600×7)22×4 =4900 r = =70cm =.7m =4312/3000 =4.312/3meter3

Source: RRB NTPC 2022 CBT 2 Previous Year Paper (12-June-2022) — ixambee compilation with answer key · reliable-secondary

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