MCQ
If three coins are tossed simultaneously, then the probability of getting at least two heads, is
- A$\frac{1}{4}$
- B$\frac{3}{8}$
- ✓$\frac{1}{2}$
- D$\frac{1}{4}$
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Assertion (A)
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Reason (R)
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A hemisphere of radius 7cm is to be painted outside on the surface. The total cost of painting at ₹ 5 per $cm^2$ is ₹ 2300.
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The total surface volume of a hemisphere is $3\pi\text{r}^2.$
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