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A magazine charges Rs 300 per 10 sq cm area for advertising. A company decided to order a half page advertisment. If each page of the magazine is 15 cm × 24 cm - Mathematics

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Question

A magazine charges Rs 300 per 10 sq cm area for advertising. A company decided to order a half page advertisment. If each page of the magazine is 15 cm × 24 cm, what amount will the company has to pay for it?

Sum
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Solution

Given, charges for 10 sq cm advertisement = ₹ 300

∴ Charges for 1 sq cm advertisement = `(₹ 300)/(10  "sq cm") xx 1` sq cm = ₹ 30

In order to find out the amount the company has to pay for a half page advertisement, we will find the area of half page of magazine and then multiply it with the charges for 1 sq cm advertisement.

Now, area of 1 page of magazine

= 15 cm × 24 cm

= 360 cm2

∴ Area of a half page of magazine

= `("Area of"  1  "page of magazine")/2`

= `360/2`

= 180 cm2

So, charges for half page advertisement

= Area of half page of magazine × Charges for 1 sq cm advertisement

= 180 × 30

= ₹ 5400

Hence, the company has to pay ₹ 5400 for it.

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Chapter 6: Mensuration - Exercise [Page 100]

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NCERT Exemplar Mathematics [English] Class 6
Chapter 6 Mensuration
Exercise | Q 51. | Page 100

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