Question

3 pieces of pastry cost rupees 345 what is the cost of one dozen pastries​

Answer 1

Answer:

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Step-by-step explanation:

Answer 2

Answer:

cost of 12 pastries = 1380 rs

Step-by-step explanation:

cost of 3 pieces of pastry cost=345

so, we  have find cost of one by unitary method

3------345

1--------?

by cross multiplication

3?=1×345

3 goes right and divides 1×345

then

345/3

=115

so cost of one pastry is 115

dozen = 12

then 12×115

=1380

hence cost of 12 pasries = 1380 rs

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