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Sushma sold her watch for ₹ 3320 at a gain of ₹ 320. For earning a gain of 10% she should have sold the watch for ₹ 3300.

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Question

Sushma sold her watch for ₹ 3320 at a gain of ₹ 320. For earning a gain of 10% she should have sold the watch for ₹ 3300.

Options

  • True

  • False

MCQ
True or False
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Solution

This statement is True.

Explanation:

S.P. of a watch = ₹ 3320

Gain = ₹ 320

∴ C.P. of the watch = ₹ (3320 – 320) = ₹ 3000

Required gain % = 10

`"S.P." = ((100 + "Gain"%)/100) xx "C.P."`

= `((100 + 10)/100) xx 3000`

= `110/100 xx 3000`

= ₹ 3300

So, for earning again of 10% Sushma should have sold the watch for ₹ 3300.

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Chapter 7: Comparing Quantities - Exercise [Page 204]

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NCERT Exemplar Mathematics Exemplar Class 7
Chapter 7 Comparing Quantities
Exercise | Q 75. | Page 204

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