MCQ
The probability that a student will score centum in Mathematics is $\frac{3}{10}$. The probability that the student will not score centum is :
- ✓$\frac{7}{10}$
- B$\frac{6}{10}$
- C$\frac{1}{2}$
- D$\frac{1}{3}$
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Assertion (A)
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Reason (R)
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If the volumes of two spheres are in the ratio 27 : 8 then their surface areas are in the ratio 3: 2.
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Volume of a sphere $=\frac{4}{3}\pi\text{R}^3.$
Surface area of a sphere $=4\pi\text{R}^2.$
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