Question

PHOTO 2020 0325-10-25 27 100
Just now
Jaan
If
how
I libre of oil is filled in one bottle, then
many bottles will be needed to fill 8 litres
of oil.
Sec c
3x3.​

Answer 1

1 liter of oil is used to fill 1 bottle.

Then the capacity of 1 bottle=1 l

Then by unitary method,

We need 1*8=8 bottles each of capacity 1 l to fill 8 liters of oil.

Answer 2

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© If 1 litre of oil is required to fill one bottle, how many bottles woul be needed to fill 8 litres of oil?

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This is to be solved by unitary method or by direct proportion.

1 Litre oil can be filled in 1 bottle.

Therefore, multiplying both LHS and RHS by 8,

8 bottles can hold 8 litres of oil.

Hence, the answer is 8.

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ADDITIONAL INFORMATION

• UNITARY METHOD

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value. In essence, this method is used to find the value of a unit from the value of a multiple, and hence the value of a multiple.

• DIRECT PROPORTION

Direct proportion or direct variation is the relation between two quantities where the ratio of the two is equal to a constant value. It is represented by the proportional symbol, ∝. In fact, the same symbol is used to represent inversely proportional, the matter of the fact that the other quantity is inversed here.

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