Math, asked by alovizhimo815, 3 days ago

CAN ANYONE PLS HELP ME​

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Answered by Teluguwala
9

a) Which of the following options results in the ratio 4:7

Given :

  • Apples = 4
  • Pineapples = 3
  • Total no.of fruits = 7

i) Number of apples to the number of pineapples :

 \bf⟹  \:  \red{ 4  :  3}

ii) Number of pineapple to the number of apples :

\bf ⟹   \red{\:  3 :  4}

iii) Number of apples to the total number of fruits :

\bf ⟹   \:  \red{ \underline{\boxed{ \:   \bf 4 :  7 \: }}}

iv) Number of pineapples to the total number of fruits :

\bf ⟹   \red{\:  3 :  7}

 \:

Hence, Option - (C) results in the ratio 4:7 .

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b) Which of the following proportionality relations is correct :

i) 1 : 2 : : 4 : 2

\sf ⟹   \:  1 : 2 : \:  :   \cancel4  \: ^{4}  :  \cancel2  \: ^{1}

\bf ⟹  \red{  \:  1 : 2 : \:  :   4  \:  :  1}

ii) 3 : 4 : : 4 : 3

\bf ⟹ \red{   \:  3: 4 : \:  :  4  :  3 }

iii) 4 : 6 : : 2 : 3

\sf ⟹   \:  \cancel 4  \: ^{2} :  \cancel6 \:  ^{3}  : \:  :  2   :  3

\bf ⟹  \:   \red{   \underline{ \boxed{ \bf\:  2 : 3 : \:  :   2 \:  :  3 \: }}}

iv) 1 : 2 : : 3 : 4

\sf ⟹   \:  1 : 2 : \:  :   \cancel3  \: ^{3}  :  \cancel4 \: ^{2}

\bf ⟹  \red{  \:  1 : 2 : \:  :   3 \:  :  2}

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∴ Hence, Option - (C) proportionality relations is correct.

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