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Suneeta Types 1080 Words in One Hour. What is Her Gwam (Gross Words a Minute Rate)? - Mathematics

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Question

Suneeta types 1080 words in one hour. What is her GWAM (gross words a minute rate)?

 
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Sum
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Solution

Number of words 1080 x
Time (in minute) 60 1
Let be her GWAM.
\[ \text { If the time taken is less, GWAM will also be less }  . \]
\[\text{ Therefore, it is a direct variation .}  \]
\[1080: x = 60: 1\]
\[ \Rightarrow \frac{1080}{x} = \frac{60}{1}\]
\[ \text{ Applying cross muliplication, we get: } \]
\[x = \frac{1080 \times 1}{60}\]
\[ = 18\]
\[\text{ Thus, her GWAM will be 18 }  .\]
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Chapter 10: Direct and Inverse Variations - Exercise 10.1 [Page 7]

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RD Sharma Mathematics [English] Class 8
Chapter 10 Direct and Inverse Variations
Exercise 10.1 | Q 10 | Page 7

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