Question

A drum is two-third full. If 120 liters are required to fill it up completely the capacity of drum in

liters is:
​

Answer 1

Solution :-

It is given that, drum is (2/3)rd full.

So,

→ Drum is Empty = 1 - (2/3) = (1/3)rd .

And, Now, we have given that, 120 liters are required to fill it up completely.

That, Means we can say that, Value of Empty part is 120 litre.

Therefore,

→ (1/3) ------------- 120 Litre .

→ 1 (Total) ------------- 120 * 3 = 360 Litre. (Ans.)

Hence, Capacity of Drum is 360 Litres.

_________________________

Ratio Method :-

→ Full drum : Empty drum = 2 : 1

So,

→ 1 unit ---------------- 120 Litre .

→ (2 + 1) units ---------------- 120 * 3 = 360 Litre. (Ans.)

_________________________

Answer 2

${ \bf{ \huge{ \underline{ \underline{ \red{Question:-}}}}}}$



▪ A drum is two - third full. if 120 litres are required to fill it up completely, The capacity of the drum in litre is??



${ \bf{ \huge{ \underline{ \underline{ \red{Solution:-}}}}}}$



${ \bold{ \purple{GIVEN- }}}$



▪ portion of drum filled = two third



▪ empty portion of the drum



${ \bold{ = 1 - \frac{2}{3} }}$



${ \bold{ = \frac{1}{3}}}$



☆ it's given in the question that 120 litres are required to fill the empty part of the drum..


that is,



${ \bold{ \pink{ \frac{1}{3} \: part }\: requires {\ { \: 120 \: litres}}}}$


therefore,


${ \bold{ \pink{whole \: drum} \: will \: require}} \\ { \bold{ \blue{ = 3 \times 120litres}}} \\ { \bold{ \blue{ = 360 \: litres}}}$


Thus,


The capacity of drum( in litres ) is 360 litres..