Question

on occasion of diwali a charitable trust donated ladoo in a poor society. it diameter of each ladoo is 3.0cm and there are 1000 persons then find quantity of ladoo in kg to give 7 ladoo to each person

Answer 1

Volume of ladoo = $\frac{4}{3}$$\pi$$r^{3}$
                           = $\frac{4}{3}$*$\frac{22}{7}$*1.5
                           = 14.14 $cm^{3}$
Now to give every person 7 ladoo and if there are 1000 persons then,
Total amount of ladoo = [1000*7*14.14]
                                   = [$\frac{9898000}{100}$]
                                   = 98980 $cm^{3}$
                                   = 237.532 kg