Question # 72
Revisit
Read the following passage and answer the given questions.
It is fascinating to see how the human race has evolved and adapted to life on Earth. Many
wonderful traditions are practiced in various parts of the planet. Some traditions we are familiar
with but some we are not. For the Huli Wigmen of Papua New Guinea, wigs are a symbol of
manhood and mark its initiation. Boys in the tribe are sent to wig school from a very young age.
One might wonder whether these omamented wigs serve any purpose other than giving the Huli
men a sense of identity and belonging. The Himba tribe of Northern Namibia is known to cover
their body with Otijze - a thick red cream. However, this practice has more to do with survival than
tradition. The cream made of crushed rocks and herbs protects them from insect bites and the
harsh African sun.
Certain tribes like the Massai tribe of Africa, have removed themselves from seclusion and are
often found in cities selling animals and mobile phones. The Sentinelese people of the Andaman
Islands on the other hand fiercely resist human contact outside of their tribe. When all attempts of
communication failed the government had to recognize them as sovereign people with a right to
attack and eyen kill trespassers. Others like the Chukchi people have been secluded from the rest
mation Alithanavern
Answers
As we know, \boxed{ \sf{1 \: m = 100 \: cm}}
1m=100cm
,
\begin{gathered}\\ \longmapsto{ \sf{25 \: m \: (length) = 25 \times 100 = 2500 \: cm}} \\ \\ \longmapsto{ \sf{18 \: m \: (breadth) = 18 \times 100 = 1800 \: cm}}\end{gathered}
⟼25m(length)=25×100=2500cm
⟼18m(breadth)=18×100=1800cm
Now, let's find the area of the floor –
\begin{gathered} \longmapsto{ \sf{ \pmb{Area \: _{(rectangle)} = lb \: sq.units}}} \\ \\ \sf{ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 2500 \times 1800} \\ \\ \sf{ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \underline{4500000 \: {cm}^{2}} }\end{gathered}
⟼
Area
(rectangle)
=lbsq.units
Area
(rectangle)
=lbsq.units
=2500×1800
=
4500000cm
2
Finding the area of a tile –
\begin{gathered}\longmapsto{ \sf{ \pmb{Area \: _{(square)} = {(s)}^{2} \: sq.units}}} \\ \\ \sf{ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = {(25)}^{2} } \\ \\ \sf{ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \underline{625 \: {cm}^{2}} }\end{gathered}
⟼
Area
(square)
=(s)
2
sq.units
Area
(square)
=(s)
2
sq.units
=(25)
2
=
625cm
2
Finally, let's find the number of tiles required by substituting the obtained measures in:
\begin{gathered} \longmapsto{ \sf{ \dfrac{Area \: of \: floor \: of \: the \: hall}{Area \: of \: a \: tile} }} \\ \\ \longmapsto{ \sf{ \dfrac{ \cancel{4500000}}{ \cancel{625}}}} \\ \\ \longmapsto \underline{\boxed{ \tt{ \pmb{ \red{7200}}}}}\end{gathered}
⟼
Areaofatile
Areaoffloorofthehall
⟼
625
4500000
⟼
7200
7200
\begin{gathered} \\ \therefore \underline{ \sf{ \pmb{ \red{7200 \: tiles} \: are \: required \: to \: pave \: the \: floor .}}}\end{gathered}
∴
7200tilesarerequiredtopavethefloor.
7200tilesarerequiredtopavethefloor.
_________________________________________okk
Answer:
1
Explanation:
cities selling animals and mobile phones. The Sentinelese people of the Andaman
Islands on the other hand fiercely resist human