Question

The price of one kg of okra is 30 rupees.what is the price of two and a half kg

Answer 1

One kg =₹ 30
Two and half kg = ₹ 75

Answer 2

Answer:

The price of two and a half kg okra is 75 rupees.

Step-by-step explanation:

Given, price of one kg of okra is 30 rupees.

Now we want to find what is the price of two and a half kg okra.

Now two and half kg $= 2.5 \: kg$

By Unitary method,we can solve this problem.

But now question is what is the use of Unitary method.

By one example,we can solve this problem more easily.

Let,cost of 5 apples is 80 rupees.

Then by Unitary method,cost of 1 apple is $\frac{80}{5} = 16 \: rupees$

and cost of 20 apples is $(16 \times 20) = 320 \: rupees$

Here cost of 1 kg of okra is 30 rupees.

So,cost of 2.5 kg of okra is

$(30 \times 2.5) \\ = 30 \times \frac{25}{10} \\ = 3 \times 25 \\ = 75 \: rupees$

Therefore the price of two and a half kg okra is 75 rupees.

Know more about Unitary method,

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