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RRB NTPC 2017 · Question 816 of 1076

The surface area (in sq.cm.) of a sphere with radius 1.5 cm is:(Take $$\pi = \frac{22}{7}$$)

  1. A$$\frac{190}{21}$$
  2. B$$\frac{190}{7}$$
  3. C$$\frac{198}{7}$$Correct
  4. D$$\frac{198}{21}$$

Answer: C. $$\frac{198}{7}$$

Official answer key verified. Detailed explanation coming soon.

Source: RRB NTPC Tier-2 (CEN 03/2015) 19-Jan-2017 Shift-1 — solved paper with answer key · reliable-secondary

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