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Q.

If 15 dozen eggs cost Rs 720, the cost of 5 score eggs is ____Rs.


[1 score = 20 units].


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Detailed Solution

Concept: The cost of 5 score eggs is Rs. 240 If the price of 15 dozen eggs is Rs 720, we may use the unitary technique to determine the price of one egg and multiply that figure by five to determine the price of five dozen eggs.
The price of one egg is equal to the price of all the eggs.
The cost of the unit egg will be determined as the first step.
The cost of five score eggs is calculated by multiplying the unit egg cost by five scores, which equals 100.
The price of eggs can be calculated as follows: price of 1 egg = 720 Rs, price of 300 eggs = 720 Rs, price of 15 dozen eggs = 720 Rs.
One egg costs Rs. 2.40, five eggs cost Rs. 2.40 (five twenty) , aand one score costs twenty units.
Five score eggs cost Rs. 2.40 times 100, or Rs. 240 for five score eggs.
5 score eggs therefore cost Rs 240.
Hence, the answer is Rs.240
 
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