Question

7 pens cost Rs. 56. The cost of 21 pens is: ​

Answer 1

answer-

7 pens cost Rs 56

1 pen cost Rs 56/7

21 pens cost Rs 56/7 × 21

Rs 168

Answer 2

Answer:

Rs. 168

Step-by-step explanation:

Question:

7 pens   = Rs. 56

21 pens = Rs. ???

Answers:

1. We need to find how much is for 1 pen first.

$\frac{56}{7} =Rs. 8$

2. We must times ( x ) the price for 1 pen with the amount of pen the question mentioned.

$Rs. 8$ x $21 pens = Rs. 168$

That's all! Hope it is understandable and helps you

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