Question

if one dozen pastries cost Rs. 180, what will be the cost of 20 pantries?​

Answer 1

Step-by-step explanation:

(1 dozen = 12)

12 pastries costs ₹180

20 pastries costs ₹x

By Direct Variation,

$\implies$ $x×12=20×180$

$\implies$ $x={\Large\frac{20×180}{12}}$

$\implies$ $\boxed{x=300}$

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Answer 2

Answer:

if cost of 12 pastries =180

1 pastry cost =180/12

=15 rupee

so cost of 20 pastries = 20*15

=300

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