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The price of a computer is . What is the price of 18 of these computers?

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answer is A.

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Detailed Solution

Concept: The following straightforward example demonstrates how to understand when costs of one item are supplied and the task is to determine the costs of numerous items:
Cost of one pen:

.
The cost of two pens is then equal to

The price of three pens is then equal to

i.e. Costs of numbers of item

Step 1 Computer price:

Step 2 – Cost of 18 computers = number of computers

cost per computer

Therefore, 18 PCs will cost you 4,95,720 rupees.
Hence, option 1 is correct.

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