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Sachin and Sanjana are calculating 23% of 800. Now calculate 52% of 700 using both the ways described above. Which way do you find easier?

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Question

Sachin and Sanjana are calculating 23% of 800.


Now calculate 52% of 700 using both the ways described above. Which way do you find easier?

Numerical
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Solution

First way

52% of 700 = (1% of 700) × 52

= `(1/100 xx 700) xx 52`

= (0.01 × 700) × 52

= 7 × 52

= 364

Second way

52% of 700 = `52/100 xx 700`

= 0.52 × 700

= 364

So, second way, we have to find easier.

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Chapter 7: Comparing Quantities - Exercise [Page 206]

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NCERT Exemplar Mathematics Exemplar Class 7
Chapter 7 Comparing Quantities
Exercise | Q 89. | Page 206

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