Question

Let us say you go to a shop to buy 3 pencils. The shopkeeper tells you that the cost
of a packet of 12 pencils is 96. How much money do you pay the shopkeeper for
pencils?​

Answer 1

Answer:

24 rupees

Step-by-step explanation:

cost of 12pencils=96₹

therefore cost of 3pencils=96×3÷12

=24Rupees

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Answer 2

Answer:

Step-by-step explanation:

Cost of 12 pencils = 96 rupees

Cost of 3 pencils = x

By ratio and proportion,

3 : x : : 12 : 96

Product of extremes = Product of means

Therefore,

3 × 96 = 12 × x

$\frac{(3) (96) }{12}$ = x

3 × 8 = x

24 = x

Therefore, we will have to pay 24 rupees