Question 4

The volume of a sphere equals its surface area only when its radius (in units) equals :

Solution

Let the radius of the circle = r

Given, volume of the sphere is equal to its surface area

$$\Rightarrow$$ $$\frac{4}{3}\pi r^3=4\pi r^2$$

$$\Rightarrow$$ r = 3 units

Hence, the correct answer is Option D

Create a FREE account and get:

Download Maths Shortcuts PDF
Get 300+ previous papers with solutions PDF
500+ Online Tests for Free

CAT Quant Questions | CAT Quantitative Ability

CAT Progressions and Series Questions CAT Profit, Loss and Interest Questions CAT Algebra Questions CAT Averages Mixtures Alligations Questions CAT Percentages Questions

CAT DILR Questions | LRDI Questions For CAT

CAT DI with connected data sets Questions CAT Games and Tournamnents Questions CAT Venn Diagrams Questions CAT Quant Based LR Questions CAT Special Charts Questions

CAT Verbal Ability Questions | VARC Questions For CAT

CAT Odd One Out Questions CAT Vocabulary Questions CAT Para Summary Questions CAT Reading Comprehension Questions CAT Grammar and Sentence Correction Questions

Follow us on

Boost your Prep!

Download App