Q4 of 20 Page 111

(i) Rs. 2.25 out of Rs. 5

(ii) 85g out of 17 kg


(iii) 2.250 kg out of 0.72 quintal.


(i)


Given: Amount = Rs 2.25


out of the amount of Rs. 5.


Tip: Percentage of x out of y is : %


Using the above tip we can easily calculate the required percentage of Rs.2.25 out of Rs. 5.


Therefore, the required answer is:


=


=


=%


(ii)


Given: the weight whose percentage has to be calculated i.e; 85 g


out of the weight of 17 kg.


Tip: Percentage of x out of y is : %


Using the above tip we can easily calculate the required percentage of


85 g out of the weight of 17 kg.



Therefore, the required answer is:



=0.005×100


=0.5%


(iii)


Given: the weight whose percentage has to be calculated i.e; 2.250 kg


out of the weight of 0.72 quintal.


Tip: (i)Percentage of x out of y is : %


(ii) 1 quintal = 100 kg.


Using the above tip we can easily calculate the required percentage of 2.250 kg out of the weight of 0.72 quintal.


Using tip (ii)


0.72 quintal = kg=72 kg.


Using tip (i)


We get the desired percentage,



=0.03125×100


=3.125 %


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