Answer :-

• The cost of 10 kg potatoes is Rs 100.

Given :-

• The cost of 8 kg potatoes is Rs 80.

To find :-

• The cost of 10 kg potatoes.

Step-by-step explanation :-

• Here, the cost of 8 kg potatoes has been given to us. We have to find the cost of 10 kg potatoes. For this, we will first find the cost of 1 kg potatoes using the given information and then use it to find the cost of 10 kg potatoes.

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• Cost of 8 kg potatoes = Rs 80.

• So, cost of 1 kg potatoes = 80 ÷ 8 = Rs 10.

• Now, the cost of 1 kg potatoes = Rs 10.

• So, the cost of 10 kg potatoes = 10 × 10 = Rs 100

Hence :-

• The cost of 10 kg potatoes is Rs 100.

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Know more :-

What is unitary method?

• A method in which the value of a unit quantity is first obtained to find the value of any required quantity is called unitary method.

Rs.100 is the correct answer..