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Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 7

A metal bar weighs 8.5 kg. 85% of the bar is silver. How many kilograms of silver are in the bar?

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Question

A metal bar weighs 8.5 kg. 85% of the bar is silver. How many kilograms of silver are in the bar?

Sum
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Solution

Total weight of the metal = 8.5 kg

Percentage of silver in the metal = 85%

Weight of silver in the metal = 85% of total weight

= `85/100 xx 8.5` kg

= 7.225 kg

7.225 kg of silver are in the bar.

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Chapter 2: Percentage and Simple Interest - Exercise 2.5 [Page 45]

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Samacheer Kalvi Mathematics - Term 3 [English] Class 7 TN Board
Chapter 2 Percentage and Simple Interest
Exercise 2.5 | Q 19 | Page 45

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